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20-06-2020
Physics

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How much work must be done on a 10 kg snowboard to increase its speed from 4 m/s to 6 m/s?

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MathPhys MathPhys

20-06-2020

Answer:

100 J

Explanation:

Work = change in energy

W = ΔKE

W = ½ mv² − ½ mv₀²

W = ½ m (v² − v₀²)

W = ½ (10 kg) ((6 m/s)² − (4 m/s)²)

W = 100 J

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