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09-11-2022
Physics

Answered

A 4.0 kg block is pushed 3.0 m at a con-
stant velocity up a vertical wall by a constant
force applied at an angle of 25.0° with the
horizontal, as shown in the figure
The acceleration of gravity is 9.81 m/s².
F
4 kg
3 m
25°
Drawing not to scale.
If the coefficient of kinetic friction between
the block and the wall is 0.20, find
b) the work done by gravity on the block

Answer :

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