Question

a body of mass 1 kg moves with an initial velocity of 15 m / s. if its velocity changes to 25 m / s in 5 seconds former find the force acting on the body.
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Answer 1

Answer:

Explanation:

m = 1kg

u = 15m/s

v = 25m/s

t = 5s

From v = u + at

        25 = 15 + a(5)

     Therefore, a = 2 m/s^2

Now from F = ma

                F = 1*2

       Therefore, F = 2N