In the following figure, the pulley P1 is fixed and the pulley P2 is movable. lf W1 = W2 = 100 N, what is the angle AP2P1? The pulleys are frictionless.
300
600
900
1200
2W cos θ = W2
= 2 x 100 cos θ = 100⇒ cos θ = 12 ⇒ θ = 600 = 2θ = 1200