Question

A body of mass 8000 kg moving at a speed of 10 m per second it is the speed of 50 m per second in 20 seconds calculate the calculate the force required to do so

Answer 1

intital speed 10m/s
final speed 50m/s
mass of body 8000kg
time 20 sec
$a = \frac{v - u}{t}$
50-10/20=2m/s^2
force= ma
8000*2=16000N