Box A falls straight down from a height h to the ground under influence of gravi

Question

Box A falls straight down from a height h to the ground under influence of gravity. Box B has the same mass as Box A and slides down a ramp that makes an angle b with the vertical direction that is greater than 0 and less than 90 degree, but it slides down the same vertical distance d. Work of A done by gravity is greater or work of B done by gravity? Box A falls straight down from a height h to the ground under influence of gravity. Box B has the same mass as Box A and slides down a ramp that makes an angle b with the vertical direction that is greater than 0 and less than 90 degree, but it slides down the same vertical distance d. Work of A done by gravity is greater or work of B done by gravity?

Explanation / Answer

Workdone on A=mgh

Workdone on B=mgh Cosb

As mgh>mgh Cosb

Work done on A is greater

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