Question

For how long should a force of 100N act on a body of mass 20kg at rest so that it acquires a velocity of 100m/s?​

Answer 1

Answer:

20 seconds

Explanation:

Answer 2

Answer:

20 s

Explanation:

Impulse = change in momentum

F Δt = m Δv

100 N Δt = 20 kg × (100 m/s − 0 m/s)

Δt = 20 s