Applied Mechanics MCQs

If the radius of the earth is 6000 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is

A rigid body suspended vertically at a point and oscillating with a small amplitude under the action of the force of gravity, is called

Centrifugal force acting on a body, moving along a circular path, will be

A railway engine weighing 60 tonnes is moving with a speed of 10 m/sec on a circular track whose radius is 200 metres. The force exerted on the rails towards the centre of the track, is

Superelevation for a broad gauge railway track of 500 m radius at an average speed of 50 kin/hour, is equal to

The vehicle moving on a level circular path will exert pressure such that reaction on

A 1200 kg vehicle is to negotiate a circular curve of radius 100 metres with a velocity of 36 km p.h. If the height of its C.G. above road level is 1 metre and the distance between the centre lines of the wheels is 1.5 metres, the reaction on the outer wheels, will be

Newton's law of motion of rotation which states, "Every body continues in its state of rest or of uniform motion of rotation about an axis unless it is acted upon by some external torque" is

Radius of gyration of a solid sphere of radius