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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Ответ:
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
Ответ:
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