Answered: The kinetic energy of a body is 358J…

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The kinetic energy of a body is 358J and its momentum is 45.0 kg-m/s. What is the speed and mass of the object?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter2: Newton's Laws

Section: Chapter Questions

Problem 22Q: (Indicates a review question, which means it requires only a basic understanding of the material to...

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Question

Answer number 3

ACTIVITY 2: PROBLEM SOLVING
Directions: Answer the following problems. Write the given, the required, solution and boxed
the final answer.
1. A moving vehicle has a velocity of 25.0 m/s and has a mass of 1000-kg. What is the
momentum of the vehicle? What force is needed to stop the vehicle in 3.00 s?
2. A car of mass 725 kg is travels at the rate of 75.0 km/hr east. What is the momentum
of the vehicle?
3. The kinetic energy of a body is 358J and its momentum is 45.0 kg-m/s. What is the
speed and mass of the object?
4. Car A has a mass of 8.00kg and moves at the rate of 5.00 m/s East collided to car B
whose mass is 5.00 kg and moves at the rate of 3.00 m/s West. After the collision,
the cars stick together in the direction of car A. What is the velocity of the cars after
the collision?
5. A 3.00 kg cat moves at 8.00 m/s strikes a 2.00 kg cart that moves 5.00 m/s in the same
direction. What is the final velocity of each cart if the collision is perfectly elastic linear
collision?

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