Net Work & Work-Energy Theorem Video Lessons

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Problem: Consider two objects (Object 1 and Object 2) moving in the same direction on a frictionless surface. Object 1 moves with speed v1 = v and has inertia m1 = 2m. Object 2 moves with speed v2=2√v and has inertia m2=m. Which object has the larger kinetic energy? Which object has the larger kinetic energy? a. Object 1 has the greater kinetic energy. b. Object 2 has the greater kinetic energy. c. The objects have the same kinetic energy.

FREE Expert Solution

Kinetic energy:

KE=12mv2

KE1 = (1/2)(2m)(v2) = mv2 

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Problem Details

Consider two objects (Object 1 and Object 2) moving in the same direction on a frictionless surface. Object 1 moves with speed v1 = v and has inertia m1 = 2m. Object 2 moves with speed v2=2√v and has inertia m2=m. 

Which object has the larger kinetic energy? Which object has the larger kinetic energy? 

a. Object 1 has the greater kinetic energy. 

b. Object 2 has the greater kinetic energy. 

c. The objects have the same kinetic energy.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Net Work & Work-Energy Theorem concept. You can view video lessons to learn Net Work & Work-Energy Theorem. Or if you need more Net Work & Work-Energy Theorem practice, you can also practice Net Work & Work-Energy Theorem practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Granucci's class at Quinnipiac University.