   Chapter 12.3, Problem 51E

Chapter
Section
Textbook Problem

# A sled is pulled along a level path through snow by a rope. A 30-lb force acting at an angle of 40° above the horizontal moves the sled 80 ft. Find the work done by the force.

To determine

To find: The work done.

Explanation

Given:

|F|=30-lb, θ=40° and |D|=80ft

Formula used:

The equation to find the work done (W) is,

W=|F||D|cosθ (1)

Here,

F Force,

D is the displacement vector, and

θ is the angle between F and D.

Calculation:

In equation (1), substitute 30-lb for |F|, 80ft for |D| and 40° for θ

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