A weight lifter lifts a mass of 50 kg barbell from the floor to a height...

Question

Question

A weight lifter lifts a mass of 50 kg barbell from the floor to a height of 0.5 meter.

(a) Calculate the work done by the weight lifter on the barbell

(b) Calculate the work done by the gravitational force.

science physics

Answer 1

Answer #1

Answer 2

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