Question

Acceleration (in m/s2) of a body moving in a straight
line varies with distance covered (in m) as a=s+1.
Velocity of body after covering 3 m, if initial
velocity is 2 m/s, will be about
(1) 2.9 m/s
(2) 3.8 m/s
(3 4.4 m/s
(4) 5.2 m/s​

Answer 1

Answer:

d)5.2m/s

Explanation:

s=3 m ,u=2m/s, a= 4 (3+1)       given

v ^2=u^2 + 2as

v^2=4+2*4*3

v^2=28

v=5.2 m /s