A crowbar is of 125 cm length. Its fulcrum is at a distance of 25 cm from the load. Find out the mechanical advantage.

A crowbar is of 125 cm length. Its fulcrum is at a distance of 25 cm f

1.	A crowbar is of 125 cm length. Its fulcrum is at a distance of 25 cm from the load. Find out the mechanical advantage.
Answer» Solution :Load arm = 25 cm Effort arm = 125 -25 =100 cm MA=`"LENGTH of effort arm"/"Length of load arm" =100/25`=4 (since MA is a ratio , it has no unit)