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

User Alexey Kislitsin
by
4.6k points

1 Answer

7 votes

Answer:

100 J

Step-by-step 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

User Anadi
by
4.0k points
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