Question

A crow bar 2m long is pivoted about a point 0.1m from its tip. Calculate the least force which must be applied at the other end to displace a load of 95 kgf

Answer 1

Length of the crowbar = 120 cm

Load arm = 20 cm

Effort arm = 120-20 = 100 cm

MA = Effort arm

Load arm

MA = 100

20

MA = 5