Momentum and Collision Questions

A mass of 20 kg moving with a speed of 10 m/s collides with another stationary mass of 5 kg. As a result of the collision, the two masses stick together. The kinetic energy of the composite mass will ...

Two particles of masses m1, m2 move with initial velociteis u1 and u2. On collision, one of the particles get excited to higher level, after abosrbing energy e. If final velocities of particles be v1 ...

It is found that if a neutron suffers an elastic collinear collision with deuterium at rest, fractional loss of its energy is pd ; while for its similar collision with carbon nucleus at rest, fract...

In a collinear collision, a particle with an initial speed v0 strikes a stationary particle of the same mass. If the final total kinetic energy is 50 % greater than the original kinetic energy, the ...

A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the valu...

The spring balance A reads 2 kg with a block m suspended from it. A balance reads 5 kg when the beaker with liquid is put on the pan of the balance. The two balance are now so arragned that the hangin...

An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass 1 kg moves with a speed of 12 ms-1 and the second part of ma...

A ′T′ shaped object with dimensions shown in the figure, is lying on a smooth floor. A force F is applied at the point P parallel to AB, such that the object has only the translational mot...

A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three pieces. Two pieces each of mass (m) move perpendicular to each other withequal speeds (v). The total kinetic energy g...

A ball of mass 1 kg is suspended by an inextensible string 1 m long attached to a point O of a smooth horizontal bar resting on a fixed smooth supports A and B. The ball is released from rest the posi...

A particle of mass m is projected from the ground with an initial speed u0 at an angle α with the horizontal. At the highest point of its trajectory, it makes a completely inelastic collision wit...

There is a circular tube in a vertical plane. Two liquids which do not mix and of densities d1 and d2 are filled in the tube. Each liquid subtends 90o angle at centre. Radius joining their interface m...

The force F acting on a particle of mass m is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is...

On heating water, bubbles being formed at the bottom of the vessel detatch and rise. Take the bubbles to be spheres of radius R and making a circular contact of radius r with the bottom of the vessel....

A ball hits the floor and rebounds after an inelastic collision. In this case

A shell is fired from a cannon with velocity v (m/s) at an angle with the horizontal direction. At the heighest point in its path it explodes into two pieces of equal mass. One of the pieces retraces ...

Two particle of masses m1 and m2 in projectile motion have velocities and respectively at time t = 0. They collide at time t0. Their velocities become and at time 2t0 while still moving in air. Then v...

A vesal containing water is given a constant acceleration a towards the right along a straight horizontal path. Which of the following diagrams represents the surface of the liquid ?...

A body flots in a liquid contained in a beaker. The whole system as shown in fugure falls freely under gravity. The upthrust on the body is...

A homogeneous cylinder of length L and cross-section area A/5 is immersed such that its floats with it axis vertical at the liquid - liquid interface with length L/4 in the denser liquid as shown in t...