Question

Starting from rest a particle moves in a straight line with acceleration.
a={2+(t-2)}m/s^2
Then velocity of particle at the end of 4s will be
(1) 0 m/s
(2) 6 m/s
(3) 12 mis
(4) 18 ms​

Answer 1

Answer:

8

Explanation:

plz check ur answer.

integrating the value of 'a' w.r.t. time gives velocity. so at time 4 sec.

the value of v is

v= t²/2 = 4²/2= 8