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2 о 2 A crate is moved across a frictionless floor by rope THAT is inclined 30 degrees above horizontal. The tension in the rope is SON. How much work is done in moving the crate 10 meters? Show solutions


Sagot :

Answer:

The work done by an object exerting a force F at an angle θ and at a distance d is given by

where:

W = work

F = force

d = distance

θ = angle of the force with the horizontal

Solving for W

W = Fd cos θ

W = (50 N)(10 m)(cos 30°)

Therefore, the work done is 433.01 J.

Explanation: