Find minimum value of `l` so that truck can avoid the dead end, without toppling the block kept on it.

Find the value of ‘x’ so that l|| m.

Find the value of 'x' so that l||m .

A block of mass M= 4 kg of height and breath b is placed on a rough plank of same mass M . A light inextensible string is connected to the upper end of the block and passed through a light smooth pulley as shown in figure. A mass m =1 kg is hung to the other end of the string. a. What should be the minimum value of coefficient of friction between the block and the plank so that, there is no slipping between the block and the wedge? b. Find the minimum value of b//h so that the block does not topple over the plank, friction is absent between the plank and the ground.

A block of mass M= 4 kg of height and breath b is placed on a rough plank of same mass M . A light inextensible string is connected to the upper end of the block and passed through a light smooth pulley as shown in figure. A mass m =1 kg is hung to the other end of the string. a. What should be the minimum value of coefficient of friction between the block and the plank so that, there is no slipping between the block and the wedge? b. Find the minimum value of b//h so that the block does not topple over the plank, friction is absent between the plank and the ground.

Find minimum μ so that the blocks remain stationary.

A block of mass m is dropped onto a spring of constant k from a height h . The second end of the spring is attached to a second block of mass M as shown in figure. Find the minimum value of h so that the block M bounces off the ground. If the block of mass m sticks to the spring immediately after it comes into contact with it.

A block of mass m is dropped onto a spring of constant k from a height h . The second end of the spring is attached to a second block of mass M as shown in figure. Find the minimum value of h so that the block M bounces off the ground. If the block of mass m sticks to the spring immediately after it comes into contact with it.

Find the minimum value of F and the tension in the string so that the blocks move with constant velocity. The coefficient of friction at all surfaces is mu . (a) (b) ( c ) (d)

A large rectangular glass block of refractive index mu is lying on a horizontal surface as shown in Figure. Find the minimum value of mu so that the spot S on the surface cannot be seen through top plane ‘ABCD’ of the block.

Find the maximum speed at which a truck can safaly travel without toppling over, on a curve of radius 250m . The height of the centre of gravity of the truck above the ground is 1.5m and the distance between the wheels is 1.5m , the truck being horizontal.