Question

A body of mass 5 kg starts acceletaring to 8m/s in 20 and its mass is 5kg. Find the force applied.

Answer 1

It's easy question..........!!!!!☺️☺️

Mass = 5 kg (given)
Initial velocity (u) = 0 m/s
Final velocity (v) = 8 m/s
time (t) = 20 seconds.
Acceleration (a) = v-u/t = 8-0/20 = 8/20
= 0.4 m/s^2

Now, from newton's second law, we get
Force (F) = Mass (m) × acceleration (a)
=> F = (5×0.4) Newton
=> F = 2 Newton.

Hence, the force applied is
$2 \: newton.$