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Questions  

If acceleration of a particle at any time is a=2t + 5, Calculate the velocity after 5s, if it starts from rest.

a
50 ms-1
b
25 ms-1
c
100 ms-1
d
75 ms-1

detailed solution

Correct option is A

a=2t+5 dvdt=2t+5 ∫0vdv=∫t=0t=s2t+5dt v=t2+5tt=0 v=50 ms-1

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