Afarm hand does 972 j of work pulling an empty hay wagon along level ground with a force of 310 n [23° below the horizontal]. the distance the wagon travels is: a) 32 m b) 1.7m c) 0.39 m d) 3.4 m

Option d)

Solution:

As per the question:

Work done by farm hand,

Force exerted, F' = 310 N

Angle,

Now,

The component of force acting horizontally is F'cos

Also, we know that the work done is the dot or scalar product of force and the displacement in the direction of the force acting on an object.

Thus

d = 3.406 m = 3.4 m

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