Pls solve Q11
11. A body moves from rest with a uniform acceleration and travels 270 m in 3 s. Find the velocity of the body at 10 s after the start.
Dear Student,
Given, u = 0,
s = 270m in time t =3s
v =? at time t = 10s
First we find acceleration of body a =?
We use, s = ut + 0.5 at2
=> 270 = 0*3 + 0.5*a*3*3
=> a = 540/9 = 60m/s2
Now, velocity of train after 10s.
v = u +at
=> v = 0 + 60*10 = 600 m/s
Regards