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Solved: Pushing a Cat. Your cat “Ms.” (mass 7.00 kg) is
Chapter 6, Problem 82P(choose chapter or problem)
Problem 82P
Pushing a Cat. Your cat “Ms.” (mass 7.00 kg) is trying to make it to the top of a friclionless ramp 2.00 m long and inclined upward at 30.0° above the horizontal. Since the poor cat can’t get any traction on the ramp, you push her up the entire length of the ramp by exerting a constant 100-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.
Questions & Answers
QUESTION:
Problem 82P
Pushing a Cat. Your cat “Ms.” (mass 7.00 kg) is trying to make it to the top of a friclionless ramp 2.00 m long and inclined upward at 30.0° above the horizontal. Since the poor cat can’t get any traction on the ramp, you push her up the entire length of the ramp by exerting a constant 100-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.
ANSWER:
Solution 82P
Step 1:
Mass of the cat is
Length of the ramp is
Angle of inclination
Force applied is
Speed of the cat at bottom of the ramp is