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contestada

A weightlifter must exert 25 Newtons of force to
lift a set of barbells 2 meters off the ground.
How much work did he do on the barbells when he lifted
them?

A. 50 Nm
B. 2.5 Nm
C. 0 Nm

Respuesta :

mistressofdark

[tex]Work=Force \: × \: displacement \\ => W=Fs \\ \\ Given, \\ Force=25 \: N \\ Displacement=2m \\ \\ so \: work = 25 \: N \: \times 2m \\ = > work = 25kgm {s}^{ - 2} \times 2m \\ = > work = 50kg {m}^{2} {s}^{ - 2} \\ = > work = 50J[/tex]

This is the answer.

Hope it helps!!

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