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17.The speed of a body which is moving with constant acceleration changes from5m/s to 15m/s in 5s. Find the displacement of the body.a) 50mb) 100mC) 150md) 200m

Answer»

Using,v = u + at

v = 15 m/su = 5 m/st = 5 s

15 = 5 + a*510 = 5aa = 10/5 = 2 m/s^2

Now, using s = ut + 1/2 at^2 = 5*5 + 1/2 * 2 * 5*5 = 25 + 25 = 50 m

Therefore,Displacement = 50 m

(a) is correct option



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