anonymous8786 anonymous8786

30-08-2019
Physics

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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?

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30-08-2019

Answer:

20 seconds

Explanation:

Answer Link

MathPhys MathPhys

30-08-2019

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

Answer Link

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