When a force of 6.0 N is exerted at `30^@` to a wrench at a distance of 8 cm from the nut, it is just able to loosen the nut. What force F would be sufficient to loosen it if it acts perpendicularly to the wrench at 16 cm from the nut?

A force of 8 N is applied to a body at a distance of 20 cm from the point at which it is pivoted. Calculate the torque or moment of force about the pivot.

When the displacement of a particle in SHM from the mean position is 4 cm, the force acting on the particle is 6 N. Then the force acting on it when its displacement is 6 cm from the mean positio is

A long wire carries a current of 5A. An electron at a distance of 50 cm from this wire is moving with a speed of 10^(7) m/s What is the force acting on the electron, when it moves directly towards the wire ?

A gramophone disc rotates at 60 rpm . A coin of mass 18 g is placed at a distance of 8 cm from the centre . Calculate centrifugal force on the coin . Take pi^(2) = 9. 87 .

A gramophone disc rotates at 60 rpm. A coin of mass 18 g is placed at a distance of 8 cm from the centre. Calculate the centrifugal force on the coin. Take pi^(2) = 9.87 .

A nut cracker is used to crack a nut. In it nut is held in two arms at a distance 2 cm from the hinge and the handle of it is at a distance 25 cm from hinge. The force required to crack a walnut is 30 N. What is the minimum force required to crack it with the nut cracker. [2.4 N]