how much force is required to lift 45kg weight straight up
a.how much work in joules is done if it is lifted 10 meters?
b.if it is pushed 30 deg ramp on wheels the force required is only half as much but the ramp is 20 meters long how much work is done pushing it up the ramp?
c.how much power (in watts) is exerted in part (a)?
d. how much power (in watts) is exherted in part (b)?
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