A block and tackle system has 5 pulleys. If an effort of 1000 N is nee

1.	A block and tackle system has 5 pulleys. If an effort of 1000 N is needed in the downward direction to raise a load of 4500 N, calculate : (a) the mechanical advantage , (b) the velocity ratio, and (c) the efficiency of the system.
Answer» A block and tackle system has 5 pulleys. If an effort of 1000 N is needed in the downward direction to raise a load of 4500 N, calculate : (a) the mechanical advantage , (b) the velocity ratio, and (c) the efficiency of the system.

A block and tackle system has 5 pulleys. If an effort of 1000 N is needed in the downward direction to raise a load of 4500 N, calculate : (a) the mechanical advantage , (b) the velocity ratio, and (c) the efficiency of the system.

Answer»

A block and tackle system has 5 pulleys. If an effort of 1000 N is needed in the downward direction to raise a load of 4500 N, calculate :

(a) the mechanical advantage ,

(b) the velocity ratio, and