A baggage cart of weight `w` rests on a wall of height `h`. Its centre of gravity is at a distance `L` from the wheel as shown in fig.

A beam of weight W supports a block of weight W . The length of the beam is I . and weight is at a distance L/4 from the left end of the beam. The beam rests on two rigid supports at its ends. Find the reactions of the supports.

A uniform board of mass M and length L rests on two spring scales. A person of mass m stands at a distance l from one end as shown in Fig. (a) The board and person are at rest. What is the reading of the two scales?

A block having mass 'm' ad carge q is resting on a fractionless plane at distance L from the wall as shown in fig.Discuss the motion of the block when a uniform electric field E is applied horizontally towards the wall assuming that collision of the block with the wall is perfectly elastic.

A point source of light B is placed at a distance L in front of the centre of a mirror of width d hung vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror at a distance 2L from it as shown in fig. The greatest distance over which he can see the image of the light source in the mirror is

One end of a horizontal uniform beam of weight W and length L is hinged on a vertical wall at point O and its other end is supported by a light inextensible rope. The other end of the rope is fixed at point Q at a height L above the hinge at point O. A block of weight alpha W is attached at the point Q at a height L above the hinge at point O. A block of weight alpha W is attached at the point P of the beam as shown in the figure. The rope can sustain a maximum tension of 2(sqrt(2)) W . Which of the following statements is/are correct?

A rod of weight w is suppoted by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is.. And on B is......

A metre scale is supported on a wedge at its centre of gravity. A body of weight w is suspended from the 15 cm mark and another weight of 30 gram suspended from 71 cm mark balances it the metre scale remains perfectly horizontal. What is the weight of the body? Neglect the weight of the centre scale.