Question

40.
The acceleration a (in ms-2) of a body, stating from rest varies with time t (in s) according to
the relation a = 3t + 4.The velocity of the body at time t = 2s will be
a) 10 ms 1 b) 12 ms-1 c) 14 ms -1
d) 16 ms-1​

Answer 1

Answer:

10 m/sec

Explanation:

u=0

t=2 sec

so ,

put value of t in equation a=3t+4

a=3×2 + 4

a= 6 + 4

a= 10 m/sec