Question

Calculate calculate the force required to change the velocity of an object of mass 4 kg from 2 metre per second to 4 metre per second in one second give answer

Answer 1

Explanation:

m=8kg

u=4ms

−1

v=6ms

−1

t=2sec

a= ?

F= ?

a=

t

v−u

=

2

6−4

=

2

2

=1ms

−1

F=ma

=8×1=8kgms

−2

=8N