Question

The acceleration of a particle moving in a straight line varies as a = –4t, where a is in m/s2 and t is in seconds. If initial velocity is 8 m/s, the total distance covered till the particle comes to rest, is

Answer 1

Answer:

this Q is probably wrong as a particle is moving in a straight line but with a -ve acc but intial velocity is positiive

OR you can try as -

integrate the expression and velocity comes V = -2t^2

put this expression equal to 0 and then put on limits and try to solve .