Question

The load arme of an ideal lever of first class is 20cm long and effort arm is 1m long .How much load can be lifted by using an effort of 40N ?​

Answer 1

Answer:

Step-by-step explanation:

Effort Arm /Load .Arm =Load/Effort  

120/80 = 60/Effort

Effort = 40 N

Mechanical .Advantage = Load/Effort = 60/40=3/2=1.5