A crowbar of length `120 cm` has its fulcrum situated at a distance of `20 cm` from the load. The mechanical advantage of the crow bar is

A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load. Calculate the mechanical advantage of the crowbar.

The crow bar is a type of lever as shown in the figure. A crow bar of length 150 cm has its fulcrum at a distance of 25 cm from the load: Calculate mechanical advantage of this crow bar.

A crowbar is of 150 cm length. Its fulcrum is at a distance of 50 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 from the load. Find out the mechanical advantage.

Length of a crowbar is 150 cm. Its fulcrum is at a distance of 30 cm from the load. What is its mechanical advantage.

A fire tongs has its arms 20 cm long. It is used to lift a coal of weight 1.5 kgf by applying an effort at a distance of 15 cm from the fulcrum. Find : (i) the mechanical advantage of the togns, and (ii) the effort needed.

A crowbar 2 m long is pivoted about a point 10 cm from its tip. (i) Calculate the mechanical advantage of the crowbar. (ii) What is the least force which must be applied at the other end to displace a load of 100 kgf?