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if a 1-kg book at rest on the fllor is lifted a height of 1m to the top of a table how much work is done

Sagot :

This is not worth 5 pts though XD
since work = force x distance 
the following are the given
weight = 1kg
distance = 1 m
force = ??
work = ??
solution:
since force = kgm/s^2
and the constant g is 9.8 m/s^2
therefore the force applied is 9.8 N 
work is then equal to 
w = 9.8 N * 1 m
9.8 N