Question

The amount of force required to body of
mass=100kg initially moving with a speed of 10mls
on the earth's surface is.​

Answer 1

Explanation:

Mass of object, m=100kg; initial velocity, u=5ms

−1

; final velocity, v=8ms

−1

; time, t=6s

Initial momentum =mu=100×5=500Ns

Final momentum =mv=100×8=800Ns

Force exerted on the object

F=

t

mv−mu

=

6

800−500

=

6

300

=50N