PHYSICS MIDDLE SCHOOL

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 speed
of the cart at the end of this 3.0 second interval?

Answers

Answer 1
Answer:

Answer:

V = 20.5 m/s

Explanation:

Given,

The mass of the cart, m = 6 Kg

The initial speed of the cart, u = 4 m/s

The acceleration of the cart, a = 0.5 m/s²

The time interval of the cart, t = 30 s

The final velocity of the cart is given by the first equation of motion

                              v = u + at

                                  = 4 + (0.5 x 30)

                                = 19 m/s

Hence the final velocity of cart at 30 seconds is, v = 19 m/s

The speed of the cart at the end of  3 seconds

                                    V = 19 + (0.5 x 3)

                                       = 20.5 m/s

Hence, the final velocity of the cart at the end of this 3.0 second interval is, V = 20.5 m/s

Related Questions

Explain why the gravitational acceleration of any object near earth is the same matter what was the mass of the object
In the light wave above, the property labeled A determines which characteristic of visible light?brightness speedreflectioncolor
Two billiard balls move toward each other on a table. The mass of the number three ball, m1, is 5 g with a velocity of 3 m/s. The mass of the eight ball, m2, is 6 g with a velocity of 1 m/s. After the balls collide, they bounce off each other. The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball? +8.6 m/s +5.7 m/s –5.7 m/s –8.6 m/s.?
Particle q1 has a positive 6 µC charge. Particle q2 has a positive 2 µC charge. They are located 0.1 meters apart. What is the force applied between q1 and q2?
What do you think would happen if a lamp close to the sensor was left turned on overnight?

A laboratory technician was examing a blood sample from a patient.He found a rare parasite that would cause the nausea and vomiting that the patient was experience which career pathway is being describe ?

Answers

Answer: Diagnostic

Explanation: For sure!

What does an electromagnet have that a bar magnet does not ?

Answers

The bar magnet and the electromagnet act identical. The difference being a electromagnet is a coil of wire that has a power source connect to both ends, this energizes the coil with an electromagnetic field.

Friction in machines is commonly reduced by using what?

Answers

The answer would be lubricant

Answer:

the correct answer would be lubricant.I hope that helps!!!

Explanation:

F has _valence electrons.
02
OOO
9
19

Answers

As far as I know it's 7

All of the following are true about hypotheses, except: A hypothesis is a question a scientist wants to research. A hypothesis is a statement that predicts what will be observed in an investigation. A hypothesis is based on background research performed by the scientist. A hypothesis is usually written in an if-then format that describes the proposed relationship between variables.

Answers

A - a hypothesis is a question a scientist wants to research

Explanation:

i think so anyway.

Answer:

Explanation:

AI-generated answer

A hypothesis is a statement that predicts what will be observed in an investigation. It is based on background research performed by the scientist and is usually written in an if-then format that describes the proposed relationship between variables. Therefore, all of the statements listed are true about hypotheses.

1. A hypothesis is a question a scientist wants to research.

2. A hypothesis is a statement that predicts what will be observed in an investigation.

3. A hypothesis is based on background research performed by the scientist.

4. A hypothesis is usually written in an if-then format that describes the proposed relationship between variables.

Since the question asks for an exception, it means that all of the statements are true.

31 POINTS COME AN GET IT PPL!If a satellite or spaceship explodes in outer space, you can see the explosion from a distance but you cannot hear it. Why?












A)
Light waves travel very fast and sound waves travel much slower.



B)
Sound waves transmit energy while light does not transmit energy.



C)
Sound is a mechanical wave and needs a medium to travel through while light is an electromagnetic wave.



D)
Light is a mechanical wave and needs a medium to travel through while sound is an electromagnetic wave

Answers

The answer is A.

Light waves travel faster than sound waves. This is also why lightning is always seen before thunder is heard.
Other Questions
Which properties change the composition of a substance?chemical propertiesneither chemical nor physical propertiesphysical propertieschemical and physical propertiesHELPPPPPP
How is sound is different from music how loundness od sound mention some ways to reduce
if a car that is 100 feet in front of you on route 70 west slams on the brakes while you are traveling 65 miles per hour (95 feet per second) how much time do you have to hit the brakes and stop before rear ending them
A box measures 20cm by 10cm by 5cm