Question

An object starts from rest and accelerates uniformly in a straight line path in the
positive x-direction. After 12 seconds, its speed is 72 ms-1
5. The acceleration of the object is
a) 6 ms-2
b) - 5.4 ms-2
c) 3.6 ms-2
d) 6.4 ms-2​

Answer 1

Answer:

72/12

6m/s

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Answer 2

u=0m/s

v=72m/s

t=12s

v=u+at

a=(v-u)/t

a=72-0/12=6m/s^2

Therefore option a is correct