What is the advantage of using a lever in lifting heavy objects over lifting them directly?
A. reduces the weight of the object
B. reduces the input force as well as alters the force in conveinent direction
C. alters the input force in a convenient direction
D. reduces the input force

Question

What is the advantage of using a lever in lifting heavy objects over lifting them directly?
A. reduces the weight of the object
B. reduces the input force as well as alters the force in conveinent direction
C. alters the input force in a convenient direction  
D. reduces the input force

anonymous · Answer

"A lever amplifies an input force to provide a greater output force."