Question

For how long should a force of 100 N acts om a body of 20 kg so fast
acquires a velocity of 100 ms? [Hintag formula f=ma. V====
(a)
Find the anna​

Answer 1

Explanation:

given force is 100n

mass is 20kg

velocity is 100m/s

time be t

f=ma

a=f/m

a=100/20

a=5m/s²

we know that v=u+at

before force we exert on the 20kg body be in rest.

so v=at

t=v/a

t=100/5

t=20sec