Block and tackle.
• A+80+30
Block and Tackle. Block and Tackle: the Mechanical Advantage is 4, thus W2=4W1 for there to be equilibrium. If W1 > .25W2, then W1 goes down and W2 is lifted up.
• A+80+30
Block and Tackle. Block and Tackle: the Mechanical Advantage is 4, thus W2=4W1 for there to be equilibrium. If W1 > .25W2, then W1 goes down and W2 is lifted up.