A child (m = 40 kg) goes down a rough slide (mu _k=0.20). Starting at rest from the top, h = 4.0 m, (A) How fast is she moving as she reaches the bottom? (B) What is her speed if the slide is frictionless
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Step 1
Given: - Mass of the child, m = 40 kg - Coefficient of kinetic friction, μ_k = 0.20 - Height of the slide, h = 4.0 m - Acceleration due to gravity, g = 9.81 m/s^2 First, calculate the potential energy at the top of the slide: PE = mgh PE = 40 kg * 9.81 m/s^2 * Show more…
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