A steel ball falls from a height of 15.0cm in a time of 0.2s just before hitting the floor,the ball was moving at1.7m/s.how did the energy of the steel ball change while falling for 0.2s
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Explanation:
Impulse, or change in momentum, equals the average net external force multiplied by the time this force acts: Δp = FnetΔt. Forces are usually not constant over a period of time.
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