What is the momentum of an object with a mass of 150 kg moving with a velocity of 20m/s?

There is not enough information.

Motion Quiz

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Student's should be able to determine, speed, velocity, accleration, momentum, and interpret graphs of motion.

Questions and Answers

1.

A car travels 25 meters in 5 seconds. What is the speed of the car?
- A.
  
  125 m/s
- B.
  
  0.2 m/s
- C.
  
  5 m/s
- D.
  
  25 m/s
Correct Answer
C. 5 m/s

Explanation
The formula for speed is s=distance/time. The distance traveled was 25 meters. The time it took to travel that distance was 5 seconds. Therefore, s= 25m/5s to give an answer of 5 m/s

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1
2.

A car is heading NW at 25 mph. At 10 minutes the car begins to head North. Was there a change in velocity?
- A.
  
  Yes
- B.
  
  No
Correct Answer
A. Yes

Explanation
Velocity may change when speed changes or when direction changes.

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3.

Use the following graph to answer questions 3 and 4.At which point on the graph was the object's motion at a constant velocity?
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  None of the above
Correct Answer
B. B

Explanation
From 20 to 48 seconds the object maintains a constant velocity of 40 m/s. The object does not accelerate.

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4.

Use the graph was question 3 and answer the following question.What was the object's acceleration from 0 to 20 seconds?
- A.
  
  40 m/s
- B.
  
  40 m/s/s
- C.
  
  20 m/s
- D.
  
  20 m/s/s
Correct Answer
D. 20 m/s/s

Explanation
a= v(final)- v(initial)/change in time
a= (40m/s- 0m/s)/(20s- 0s)= 20m/s/s

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5.

What is the momentum of an object with a mass of 150 kg moving with a velocity of 20m/s?
- A.
  
  300 kg*m/s
- B.
  
  3000 kg*m/s
- C.
  
  7.5 kg*m/s
- D.
  
  There is not enough information.
Correct Answer
B. 3000 kg*m/s

Explanation
momentum= mass x velocity
momentum= 150 kg x 20m/s
momentume= 3000 kg* m/s

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Current Version
Mar 22, 2022

Quiz Edited by
ProProfs Editorial Team
Nov 03, 2008

Quiz Created by
Smclean

Motion Quiz

A car travels 25 meters in 5 seconds. What is the speed of the car?

A car is heading NW at 25 mph. At 10 minutes the car begins to head North. Was there a change in velocity?

Use the following graph to answer questions 3 and 4.At which point on the graph was the object's motion at a constant velocity?

Use the graph was question 3 and answer the following question.What was the object's acceleration from 0 to 20 seconds?

What is the momentum of an object with a mass of 150 kg moving with a velocity of 20m/s?