Question

Tarun uses a force of 85kg weight at a distance of 500cm from the fulcrum of a crowbar to lift the log of wood placed 50cm away from the fulcrum. What is the weight of the log and its mechanical advantage?​

Answer 1

Answer:

Load arm =50 cm

Effort arm 150-50cm =100 cm

MA= length of effort arm/length of load arm

∴ M A =

$\frac{100}{50} = 2$