Non Contact Collision

Q.

Two solid rubber balls A and B having masses 200 and 400 gm respectively are moving in opposite directions with velocity of A equal to 0.3 m/s. After collision the two balls come to rest, then the velocity of B is

1. 0.15 m/sec

2. 1.5 m/sec

3. - 0.15 m/sec

4. None of the above

Q.

A body of mass 2 kg moving with a velocity of 3 m/sec collides head on with a body of mass 1 kg moving in opposite direction with a velocity of 4 m/sec. After collision, two bodies stick together and move with a common velocity which in m/sec is equal to

1. $\frac{1}{4}$

2. $\frac{1}{3}$

3. 
   $\frac{2}{3}$

4. $\frac{3}{4}$

Q.

When two bodies stick together after collision, the collision is said to be

1. Partially elastic

2. Total elastic

3. Total inelastic

4. None of the above

Q.

A particle of mass 'm' moving eastward with a speed 'v' collides with another particle of the same mass 'm' and moving northward with the same speed 'v'. The two particles coalesce on collision. The new particle of mass '2'm will move in the north-easterly direction with a velocity

1. $\frac{v}{2}$

2. 2v

3. $\frac{v}{\sqrt{2}}$

4. v

Q.

Two solid rubber balls A and B having masses 200 and 400 gm respectively are moving in opposite directions with velocity of A equal to 0.3 m/s. After collision the two balls come to rest, then the velocity of B is

1. 0.15 m/sec

2. 1.5 m/sec

3. -0.15 m/sec

4. None of the above

Q.

A shell initially at rest explodes into two pieces of equal mass, then the two pieces will

1. Be at rest

2. Move with different velocities in different directions

3. Move with the same velocity in opposite directions

4. Move with the same velocity in same direction