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How many times must he lift the mass
Course:- Physics
Reference No.:- EM13279253





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A student ate a Thanksgiving dinner that totaled 3000Cal . He wants to use up all that energy by lifting a 30-kg mass a distance of 1.0 m. Assume that he lifts the mass with constant velocity and no work is required in lowering the mass.

A- How many times must he lift the mass?

B- If he can lift and lower the mass once every 4.8s , how long does this exercise take?




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