Question

if the fulcrum of a crow bar of total length 150 cm is at a distance of 25 cm from the load what is the mechanical advantage of the crow bar​

Answer 1

Length of crowbar = 150cm

Load arm = 25

Effort arm = 150 - 25 = 125cm

MA = Effort arm/Load arm

MA = 125/25

MA = 5

Answer 2

Given

Length of the crowbar = 150 cm

Load arm = 25 cm

Effort arm = 150-25 = 125 cm

Mechanical Advantage = Effort arm / Load arm

Mechanical Advantage = 125/5

Mechanical Advantage = 25