Question

A trolley, while going down an inclined plane,has an acceleration di 2cm/s^2? What will be its velocity 3 sec after the start?
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Answer 1

Explanation:

given

u=0

a=2cm/s2

v=?

t=3s

according to the first law of motion

v=u+at

v=0+2×3

v=6cm/s