Question

How many seconds does it take for net force 20N to change the velocity to a 5kg mass by 2m/s?

Answer 1

0.5 second

Step-by-step explanation:

We are given that

Force, F=20 N

Mass, m=5 kg

Change in velocity,=2m/s

We have to find the time taken to change the velocity .

We know that

Force, F=ma

Where

Acceleration, a=Change in velocity/time

`a=(2)/(t)`

Substitute the values

`20=5* (2)/(t)`

`t=(5* 2)/(20)`

`t=0.5 s`