Work: Example 2
About the Lecture
The lecture Work: Example 2 by Jared Rovny, PhD is from the course Work.
Included Quiz Questions
A bicycle has a kinetic energy of 124 J. What force do the brakes have to apply to stop it at a 4 m distance?
- 31 N
- 62 N
- 24 N
- 44 N
- 124 N
An object of mass m is sliding down an incline that makes an angle θ with the ground. The coefficient of kinetic friction of the incline is μ_k. What is the net force acting on the mass?
- mg sinθ - mgμ_k cosθ
- mg sinθ + mgμ_k cosθ
- mg (sinθ - cosθ)
- mg cosθ - mgμ_k sinθ
- mgμ_k cosθ - mg sinθ
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Author of lecture Work: Example 2
Jared Rovny, PhD
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