Question

A person using a 50cm long handled spanner can open a nut by
applying a 200 N forcee. What should be the length of the handle if he
wants to open the nut by applying a force of 80 N

Answer 1

Answer:

Explanation:

moment of force = (200×0.5 ) Nm

                            = 100 Nm

if force is equal to 80N

moment of force= 80N× x m  

            100 Nm=80x

            x= 100/80

            x = 5/4 m

if in cm = 5×100/4

             = 125 cm