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17-01-2018
Physics

contestada

A force used to lift a 25kg mass to a height of 12m in 5 sec does 2100J of work. How much force is used?

DO NOT INCLUDE UNITS BUT KNOW THAT FORCE IS IN NEWTONS.

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carlosego carlosego

26-01-2018

By definition we have that the work done in one direction, is given by the multiplication of the force exerted in that direction by the distance traveled.
So, we have:
Work = Force * distance
2100 J = Force * 12 m
Force = 175 N
The other data, are extras.
Answer
Force = 175 N

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