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Grade 11Mechanics

A weightless inextensible rope rest on a stationary wedge forming an angle Alpha with the horizontal one end of the Rope is fixed on the wall at point A. a small load is attached to the Rope at point B . The wedge starts moving to the right with a constant acceleration the acceleration of the load given by....

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Profile image of ABC
7 Years agoGrade 11
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Profile image of Shivansh
7 Years ago
Use work energy theorem for constrtaint motion. The net tension on the wedge is T-Tcos(alpha).
This will give acceleration in X direction a(1-cos(alpha))

Use WE theorem again in Y direction, Tension on the block is TSin(alpha), so acceleration is also aSin(alpha)

Vector sum the two, you get 2aSin(alpha/2)