Asked by merlyn

a girl of mass 40 kg is skating at a constant speed of 1 m/s. supposed she doubles her speed, how much work will be needed to double her speed?

12 years ago

Answered by drwls

Four times as much, since Kinetic Energy is proportional to V^2.

12 years ago

Answered by Anonymous

afsefedrhythyt

8 years ago

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