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A 1100-kg elevator is lifted at a constant speed of 1.5 m/s through a height of 20 m. a)How much work is done by the tension in...Asked by sinti
A 1100-kg elevator is lifted at a constant speed of 1.5 m/s through a height of 20 m.
a)How much work is done by the tension in the elevator cable?How much work is done by gravity?
b)How much work is done by gravity?
a)How much work is done by the tension in the elevator cable?How much work is done by gravity?
b)How much work is done by gravity?
Answers
Answered by
bobpursley
a) work=tension*distance=1100*9.8*20
b) by gravity, the negative of that
b) by gravity, the negative of that