an object of mass 5 kg is moving with a velocity of 10 ms-1. A force is applied so that in 20 s,it attains a velocity of 25ms-1.what is the force applied on the object?
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force = change in momentum/time
F = m(v-u)/t
F =5(25-10)/20
F=5(15)/20 = 3.75 N
F = m(v-u)/t
F =5(25-10)/20
F=5(15)/20 = 3.75 N
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