1)A cyclist travels ¾ of a circular track from A to b as shown in figure. The radius of the circular track is 400 m. Calculate the displacement and distance travelled by the cyclist.PLEASE SHOW ALONG WITH STEPS(1)

2)Two objects having their masses 3:5 are acted upon by two forces.The forces are in the ration of 5:3. find the ration in their accelerations.

PLEASE SHOW ALONG WITH STEPS (2)

3) A man pushes a box of mass 50 kg with a force of 80 N. What will be the acceleration of the box due to the force? what would be the acceleration if the mass were doubled?

PLEASE SHOW ALONG WITH STEPS(3)

4) How does the force of gravitation between two objects change when the distance between them is reduced to half.

PLEASE SHOW ALONG WITH STEPS (4)

5) Explain what happens to the force between two objects if:
A) the mass of one object is doubled?
B) the distance between the object is tripled.

PLEASE SHOW ALONG WITH STEPS (5)

6)How will the equations of motion for an object moving with a uniform velocity change?

PLEASE SHOW ALONG WITH STEPS (6)

7)The force of attraction between two bodies is 20N. Calculate the force between them when mass of each body as well as the distance between them are halved.

PLEASE SHOW ALONG WITH STEPS(7)

Answers

Answer 1

Answer: 1). Distance is the length of the path he traveled. That's 3/4 of the circle.

Displacement is the length between where he started and where he ended.
That's 1/4 of the circle.

The circumference of a circle is (2 pi) · (the circle's radius) .

2). Force = (mass)·(acceleration) F = M·A
This is a very important formula. You should memorize it.
Whenever you see a problem that has force, mass, and
acceleration in it, this is the formula you need.

If you need to find acceleration (like in this problem),
divide each side by (mass), and then you have

Acceleration = (force) divided by (mass) .

First object: Mass=3, Force=5. Acceleration= 5/3 .

Second object: Mass=5, Force=3. Acceleration= 3/5 .

The question is asking for the ratio of these forces.

3). Guess what !    F = M · A .

Divide each side by Mass, and then you have

   Acceleration = (force) divided by (mass)

   = (80 N) / (50 kg) = ?

If the mass were doubled, it would be

   (80 N) / (100 kg) = ?

4). The force of gravity changes opposite to the distance between
the objects. That's why the Earth pulls on us harder than Jupiter does.
The farther apart things are, the WEAKER gravity pulls them together.

How fast does the gravity force decrease ?
It decreases with the SQUARE of the distance.
That means . . .
-- If the distance changes to 3 times as far, the force becomes 1/3² = 1/9 .
-- If the distance changes to 2 times as far, the force becomes 1/2² = 1/4 .
-- If the distance changes to 1/3 as far, the force becomes (3²) = 9 .
-- If the distance changes to 1/2 as far, the force becomes (2²) = ?

5). A). The force of gravity increases as much as the PRODUCT of
the masses increases.
If one mass is B and the other mass is D, then the force calculation
has 'B·D' in it. If one of the masses doubles, then the calculation
has '2·B·D' in it. How much did the original force change ?

5). B). This was all covered in the discussion of #4).

6). 'Uniform velocity' means the object is moving in a straight line
with a constant speed. Its speed is not changing, and its direction
isn't changing either.
If a little tiny physicist is riding inside that object, there's NO TEST
he can do that can show him that he's moving. He has all of the SAME
laws of motion that any other physicist has, who's moving in any other
direction with any other constant speed.

7). Their masses are 'B' and 'D'. The original product is 'BD'.
When each mass is cut in half, they'll become B/2 and D/2.
Their product will become BD/4 .
That change alone will change the force to 1/4 of what it was originally.

If the distance between them is cut in half, then the force
changes to (2²) = 4 times what it was originally.

So the combined effect of all these changes at the same time
is that the new force is exactly equal to the original force.

Related Questions

What is the relationship between mass and weight in terms of formula
Do I have to be good at math to be a physicist?
How to do the equation p1v1 = p2v2 as an equation layed out like:P1V1=P2V2equationanswerfor the question "A sealed of gas at 101,000 Pa is expanded, reducing the volume from 0.5m3 to 0.25m3."
What would the weight of an astronaut be on Saturn if his mass is 68 kg and acceleration of gravity on Saturn is 10.44 m/s2? Please explain.
Listen →A 6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 30 seconds. What is the speedof the cart at the end of this 3.0 second interval?

How does Newton's law work? Give an example of the formula in a word problem. please help

Answers

1 An object in motion stays in motion. "Rolling a ball down an inclined plane."
2 An object's acceleration is related to it's mass. F=ma "A heavy ball rolls down the plane faster then the lighter ball"
3 For every action there is an equal and opposite reaction. "Throwing a ball, the harder you throw the faster it will go."

1.) Properties of a compound are_____the properties of the elements that make them up.2.)Compounds form as a result of a______

Answers

1). ... sometimes but not necessarily similar to ...

2). ... chemical reaction.

What occurs when an object travels in a curved path?

Answers

An object following any type of curved motion will necessarily be changing its direction as it moves. This change in direction constitutes a change in velocity, since velocity is a vector, and, thus, velocity has both a size, the speed, and a direction. So, if an object travels in a curved path, it changes velocity, and, thus, accelerates. This acceleration must be tied to a force. Newton's laws of motion explain this. Therefore, whenever an object travels in a curved path, there must be an unbalanced force acting upon it.

3. What conclusion would you draw if a seismogram from a particular seismic station showed only P waves?4. Why is it better to use data from three or more seismic stations to find the epicenter of an earthquake?

Answers

3. The Earthquake occured on the other side of the Earth

Explanation:

One of the main difference between P-waves and S-waves is that P-waves can travel through solids and liquids, while S-waves can only travel through solids. They are not able to travel through liquids.

So, if a seismic station showed only P waves, it means that there was some area in liquid state between the seismic station and the hypocenter of the earthquake. Inside the Earth, the outer part of the core is made of liquid, so this means that there outer core was along the line connecting the seismic station and the hypocenter and "blocked" the S-waves: therefore, the earthquake occurs on the other side of the Earth.

4. In order to determine with precision the location of the epicenter

Explanation:

One seismic station is only able to determine the distance of the epicenter - so, by using one seismic station only, we are only able to tell that the epicenter is located on a point along a circle, centered around the seismic station.

If we use two seismic station located at different points, we can draw two circles of possible locations for the epicenter, one for each seismic station. The intersection between the two circles will give us the exact location of the epicenter. However, two circles have two intersections: therefore, there is still an ambiguity concerning the exact location of the epicenter.

If we use three stations, therefore, we can draw three circles, and they have one intersection only: this intersection will give us the exact location of the epicenter.

Answer:

1. P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth. For example, if an earthquake occurs on one side of Earth, seismometers around the globe can measure the resulting S and P waves.

2. P waves can travel through liquid and solids and gases, while S waves only travel through solids. Scientists use this information to help them determine the structure of Earth. For example, if an earthquake occurs on one side of Earth, seismometers around the globe can measure the resulting S and P waves.

3. If a seismogram records P-waves and surface waves but not S-waves, the seismograph was on the other side of the Earth from the earthquake because those waves cannot travel through the liquid core of the earth.

4. Scientists use triangulation to find the epicenter of an earthquake. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Knowing this helps them calculate the distance from the epicenter to each seismograph.

5. As the P and S waves travel out from an earthquake the P waves get progressively farther ahead of the S waves. Therefore, the farther a seismic recording station is from the earthquake epicenter the greater will be the difference in time of arrival between the P and S wave.

What parts of the antler structure must you be able to identify and measure to lawfully take a deer?

Answers

Antlers are found on all members of the deer family in North America including deer, elk, caribou, and moose. A legally antlered deer must have at least one antler that is three inches or longer measured from the base of the burr. Hope this answers the question. Have a nice day.

At which point will the riders experience centripetal acceleration?

Answers

the answer would be (X)

Other Questions

Which of the following best describes a noncontact force

What is information that is encoded as a string of 1s and 0s?

Choose three nutritional labels off of food packaging. Explain the ingredients and how to read each label in terms of calories, protein, carbohydrates, fats, and percentage of daily recommended dietary value. Assignment Guidelines: Respond in a short essay format of 200 words of at least three well developed paragraphs. Submission Requirements: Submit your essay. When submitting written assignments, please remember to: submit the assignment question(s) and your responses; proofread for spelling, grammar, and punctuation; use complete sentence structure; and make sure each paragraph has a minimum of six sentences.

2. What characteristics does the domain Bacteria have