Question

the velocity of a moving body changes at a constant rate from 50 M per second 20 metre per second in 3 seconds find acceleration

Answer 1

Its answer is -10 ms^-2

Answer 2

a=v-u/t
so the initial velocity is 50m/sec.
a=20-50/3
=-30/3
=-10 m/sec2.
So the acceleration is -10m/sec2 .

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