Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m/s and 1 m/s, respectively. They collide and after the collision, the first object moves at a velocity of 1.67 m/s. Determine the velocity of the second object.

Two bodies of masses 10kg and 2 kg are moving with velocities 2hati-7hatj+3hatk ms^(-1) and -10hati+ -35hatj-3hatk respectively. Find the velocity of the centre of mass.

Two objects, each of mass 1.5 kg, are moving in the same straight line but in opposite directions. The velocity of each object is 2.5 m s^-1 before the collision during which they stick together. What will be the velocity of the combined object after collision?

A body of mass 2kg moving with velocity 10 m/s collides another body of mass 500 g and moving with velocity 4 m/s. After collision if the 2nd body attains velocity of 8m/s, what will be the velocity of first body?

What is the momentum of an object of mass m, moving with a velocity v?

A train 100 m long is moving with a velocity of 60 km/hr. Find the time it takes to cross the bridge 1km long.

A 5 kg stationary bomb is exploded in three parts masses 1 : 1 : 3 respectively. Parts having same mass move in perpendicular direction with the velocity 30 m/s. Then the velocity of the bigger part is

A stationary particle explodes into two particle of masses m1 and m2 and move in opposite directions with velocities v1 and v2.The ratio of their K.E is

A bullet of mass 40gm is fired from a gun of mass 8kg with a velocity of 800 m/s, calculate the recoil velocity of gun.

Three particles A, B, C, of equal masses move with equal speed V along -the medians of an equiliteral triangle as shown in the diagram below. They collide at the centroid G of the triangle. After the collision A comes to rest, B retraces its path with speed V. What is the velocity of C ?

The initial velocity of a particle moving along straight line is 20 m/s and its retardation Is 2 m/s_2. The distance moved by the particle in the fifth sec. of its motion is :