Net Work & Kinetic Energy Video Lessons

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Problem: Your cat "Ms." (mass 7.00 kg) is trying to make it to the top of a frictionless ramp 2.00 m long and inclined upward at 30.0 above the horizontal. Since the poor cat cant get any traction on the ramp, you push her up the entire length of the ramp by exerting a constant 100 { m N} force parallel to the ramp.If Ms. takes a running start so that she is moving at 2.40 m/s at the bottom of the ramp, what is her speed when she reaches the top of the incline? Use the work-energy theorem.

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Problem Details

Your cat "Ms." (mass 7.00 kg) is trying to make it to the top of a frictionless ramp 2.00 m long and inclined upward at 30.0 above the horizontal. Since the poor cat cant get any traction on the ramp, you push her up the entire length of the ramp by exerting a constant 100 force parallel to the ramp.

If Ms. takes a running start so that she is moving at 2.40 m/s at the bottom of the ramp, what is her speed when she reaches the top of the incline? Use the work-energy theorem.

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