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A small block is pulled along a rough horizontal surface at a constant speed 2 ms by a constant force. This force as magnitude 25N and acts at an angle of 30 degrees to the horizontal. Calculate the work done by the force in 10 seconds.

Answer :

ABIDEMIOKINGO

The work done by the force in 10 seconds is 250 Joules

Workdone definition?

This is the product of force and distance covered by a body

The formula for calculating the workdone is expressed as:

  • W = Fdsin theta

From the information given

Workdone = 25* (2*10) sin 30

Workdone = 500(0.5)

Workdone = 250 Joules

Hence the work done by the force in 10 seconds is 250 Joules

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