Question

a body moves from rest with a uniform acceleration and yravels 270 m in 3s.find the velocity of the body at 10 s after the start​

Answer 1

Step-by-step explanation:

a=?

We have,

$s = ut + \frac{1}{2} a {t}^{2} \\ 270 = 0 \times 3 + \frac{1}{2} a \times 9 \\ 270 = 4.5 \: \times a \\ a = 60 \: m {s}^{ - 2}$

By applying,

v= u+ at

v = 0 + 60× 10

=600 m/s