2. Blocks 1 and 2 rest on rough surfaces with coefficients of friction µs1 and u2, respectively. The blocks are connected by a cable that runs over a smooth pulley

and are in equilibrium as shown below with the following values: W, = 50 N \theta_{1}=30 \text { degrees } \theta_{2}=40 \text { degrees } \mu_{\mathrm{s1}}=0.3 \mu_{\mathrm{s} 2}=0.25 If Block 2 is on the verge of sliding down the plane, what is the minimum weight W1 required for equilibrium? Do not consider overturning.а. b. If Block 2 is on the verge of sliding up the plane, what is the minimum weight W1 required for equilibrium? Do not consider overturning.