Applied Mechanics - Section 1 (3)

The resultant of two forces P and Q acting at an angle θ, is

When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as

The mechanical advantage of an ideal machine is 100. For moving the local through 2 m, the effort moves through

If three rigid rods are hinged together to form a triangle and are given rotary as well as translatory motion, the number of instantaneous centres of the triangle, will be

If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by

A satellite moves in its orbit around the earth due to

The tension in a cable supporting a lift

A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be