Question

The systems shown below are in equilibrium with m 2.70 kg and θ strings and assume the pulleys and the incline are frictionless. 28.0 If the spring sca es are ca brated n ne tons, what do they read? I re masses of hep le and 1n1 1m In nsale in (a scale in (b): scale in (c): scale in (d)

Answer 1

(A) Scale reads 0 as it is equally pulled in both the directions

(B) Scale reads $m=2.70\text{kg}$

(C) Scale reads $m=2.70\times 2=5.40\text{kg}$

(D) Scale reads $m=2.70\sin 28=1.27\text{kg}$