You want to lift a heavy block through a height by attaching a string of negligible mass to it and pulling so that it moves at a constant velocity. You have the choice of lifting it either by pulling the string vertically upward or along a frictionless inclined plane (see the image below). Which one of the following statements is true?

Question

i. block with arrow reaching height h, ii. block being draged up incline to height h

Accepted Answer

The work done on the block by the tension force is the same in both cases.

Answer

The magnitude of the tension force in the string is the same in both cases.

Answer

The  magnitude  of the tension force in the string is smaller in case ( i ) than in case (ii).

Answer

The work done on the block by the tension force is smaller in case (ii) than in case ( i ).

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You want to lift a heavy block through a height by attaching a string of negl...

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