Question

a square uniform metallic plate ABC rests with its side BC of a perfectly rough plane inclined to the horizon to an angle alpha . A string AP attached to A, the highest point of the plate and passing over a smooth pulley at P, the vertex of the plane, supports a weight W and AP is horizontal, if W be the weight of the plate, show that, as w increases , it will begin to turn when w>W. 1+Tan alpha / 2​

Answer 1

Answer:

Ok, x=3, BC=3cm

Step-by-step explanation: