Question

Q14.(i)Calculate the effort applied by the crowbar if it can lift a load of 50N and having mechanical advantage of 5.
please tell​

Answer 1

Answer. Given: L = 5 kgf, Load arm = 20 cm, Effort arm = 100 – 20 = 80 cm. (Since the crow bar is the lever of first order with fulcrum in between the load and the effort). = 1.25 kgf.
You write effort arm 50-20 ok