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Social ScienceChoose the BEST answer to the following:Lift a 100-N crate with an ideal pulley system by pulling a rope downward with 25 N of force. For every 1-m length of rope pulled down, the crate rises(a) 25 cm.(b) 25 m.(c) 50 cm.(d) None of these.
Choose the BEST answer to the following:
Lift a 100-N crate with an ideal pulley system by pulling a rope downward with 25 N of force. For every 1-m length of rope pulled down, the crate rises
(a) 25 cm.
(b) 25 m.
(c) 50 cm.
(d) None of these.
Expert Answer
Step 1
Work done by a body is the product of force on it and the displacement produced by it.
Let F be to force acting through displacement d. Then work done is given as
Step 2
Weight of the crate W1 and the downwards force W2 is
Step 3
Now it is kn...
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