A constant force of 40N acting on a body initially at rest gives an acceleration of 0.1ms-2 for 4s. Calculate the work done by the force

Assessment: JAMB UTME - Physics - 1987 Subject: Physics

Question 1 Report

A constant force of 40N acting on a body initially at rest gives an acceleration of 0.1ms-2 for 4s. Calculate the work done by the force
Answer Details
X = ut +  1 2 at2

= (0 x 4) + ( 1 2  x 0.1 x 4 x 4)

= 0.8m

workdone = force x distance

= 40 x 0.8

= 32J

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