A box is pulled with a force of 25 N to produce a displacement of 15 m. If the angle between the force and displacement is 30°, find the work done by the force.

324.76J

Explanation:

Given parameters:

Force of pull on the box = 25N

Displacement  = 15m

Angle of pull  = 30°  

Unknown:

Work done by the force  = ?

Solution:

Work done is the force applied on a body to move it through a particular distance.

It can be expressed as;

   Work done  = F x dcosФ

F is the force

d is the displacement

Ф is the angle

So;

        Work done  = 25 x 15cos 30  = 324.76J

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