In a ‘keep-fit’ exercise, a student of mass 45 kg steps 40 times on and off a...

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Meganrockzz(:

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In a ‘keep-fit’ exercise, a student of mass 45 kg steps 40 times on and off a...

...box of height 0.50 m...? ... Calculate the weight of the student ?
Physics homework
 
I don't see how the data or the scenario fits the question. Weight of a body is the force with which the earth pulls on it. So W = mg = 45 * 9.8 newtons.
 
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