A crate slides down a ramp that makes a 20∘ angle with the ground. To keep the crate moving at a steady speed, Paige pushes back on it with a 76 N horizontal force. Part A How much work does Paige do on the crate as it slides 4.0 m down the ramp? Express your answer with the appropriate units.

Question

Physics

Natalya Henry

3 March, 12:18

A crate slides down a ramp that makes a 20∘ angle with the ground. To keep the crate moving at a steady speed, Paige pushes back on it with a 76 N horizontal force. Part A How much work does Paige do on the crate as it slides 4.0 m down the ramp? Express your answer with the appropriate units.

+1

Answers (1)

Know the Answer?

Harrell · Answer 1

Hence, work done = 287.54 J

Explanation:

Given dа ta:

angle of ramp with the ground θ = 20°

force applied = 76 N

work done on the crate to slide down 4 m down the ramp

W = F*d cosθ (only the cos component of the force will slide the crate down)

W = 76*4*cos20 = 287.54 J