Question

. 23. What force will change the velocity of a body of mass 2kg from 20ms to 30ms' in two seconds? ​

Answer 1

Answer:

kinetic energy will change the force

Explanation:

Answer 2

Explanation:

From newton's second law,F=

dt

dP

dP= d(mv)

So, required force F=

2

1(30−20)

N

so F=5N