When you ride a roller coaster that makes sharp turns ,you feel yourself being pushed to one side . Use Newton’s first law of motion to explain this phenomenon
Answers
Explanation:
Newton's first law says that an object in motion stays in motion, and an object at rest stays at rest, until acted upon by an unbalanced force.
When a roller coaster makes a sharp turn, your body continues going straight until the seat belt pushes you and changes your direction. If the roller coaster didn't have seat belts, you'd slide off and continue moving straight.
Related Questions
Which type of volcano forms when eruptions contain mostly dust, ash, and cinders?composite cone volcano cinder volcano hot vent volcano shield volcano
1. How does the friction affect forwardmotion? Give an example. 2. Describe two ways to change the frictional force between two solids surfaces. Change the lubrication between the two surfaces Change the normal force between the two surfaces3. How does air resistance affect the velocity of a falling object? 4. What two sources of friction do you have to overcome when you are walking? 5. If you push a chair across the floor at a constant velocity, how does the force of friction compare with the force exert? Explain. 6. If you push a book against a wall hard enough, it will not slide down even though gravity is pulling it. Use what you know about Newton’s laws of motion to explain why the book doesn’t fall.
Imagine that you are baking brownies for a bake sale at school. Which of the following pans is least likely to cause you to burn the bottoms of your brownies?a glass pan, an aluminum pan, a cast iron pan or a copper pan
What instrument use lenses or mirrors to collect and focus light from distant objects?
Answers
Considering the definition of density, the density of the old coin is 8.92 .
It is neccesary to know that density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.
In other words, Density is a quantity that allows us to measure the amount of mass in a certain volume of a substance, that is, density is the relationship between the mass of a substance and the volume it occupies.
Mathematically, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
In this case, you know:
- mass= 26.76 g
- volume= 3 cm³
Replacing in the definition of density:
Solving:
density= 8.92
The density of the old coin is 8.92 .
Learn more about density:
Density = mass/volume
26.76/3 = 8.92
The density is 8.92
Answers
Answers
You are correct! **
Answers
on a curved path, its direction is constantly changing. Its speed may
be constant, but its velocity isn't.
The centripetal force on a mass 'm' that keeps it on a circle with radius 'r' is
F = (mass) · (speed)² / (radius).
For this particular car, the force is
(2,000 kg) · (25 m/s)² / (80 m)
= (2,000 kg) · (625 m²/s²) / (80 m)
= (2,000 · 625 / 80) (kg · m / s²)
= 15,625 newtons .
Answers
140m ÷ 5s
Final answer:
The average speed of a cheetah that runs 140 meters in 5 seconds is calculated by dividing the distance by time, which equals 28 m/s.
Explanation:
To calculate the average speed of a cheetah running a distance of 140 meters in 5 seconds, we use the formula for average speed which is:
Average Speed = Distance / Time
Substituting the given values of distance and time in this equation, we get:
Average Speed = 140 meters / 5 seconds
Solving this, we obtain the average speed of the cheetah as 28 m/s.
The average speed is a scalar, meaning we do not include direction in the answer. For comparison purposes, the speed of a typical automobile might be around 15 m/s.
Learn more about Average Speed here:
#SPJ3