The velocity of a golf ball rolling in a straight line changes from 8 m/s to 2 m/s in 10 s. What is its deceleration, assuming that it is decelerating uniformly ?
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acceleration = v-u/ t
= 8-2/10
a = 0.6 m/s
deceleration = - acceleration
deceleration = - 0.6 m/s
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