Question

A particle starts from rest and moves with acceleration of a={2-|t-2|} to the velocity of particle at T = 4 is

Answer 1

{2-\4-2/}
{2-2}
0 is the answer

Answer 2

Answer:12m/s

Explanation:In this question we have to find the velocity of the particle hence we need the acceleration at t=3 sec

So now a=(2-|3-2|)=3m/s^2

And t=4 sec

So putting the values in "v=u+at" we get

V=0+3*4

=12 m/s [ note u=0 because the particle starts from rest]