Which of the following are force multipliers?
Which of the following are non-contact forces?
Magnetic force, Frictional force, Gravitational force, Electrostatic force.
the arm of a nut cracker is 15 cm long the force needed to crack a nut without the help of the nut cracker is 22.5 kg wt. where should be the nut placed in a nut cracker so as to crack it with a force of 2.25 kg wt