A body falls on a surface of coefficient of restitution 0.6 from a height of 1 m. Then the body rebounds to a height of 

(1) 0.6 m

(2) 0.4 m

(3) 1 m

(4) 0.36 m

Subtopic:  Collisions |
 71%
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A body at rest breaks up into 3 parts. If 2 parts having equal masses fly off perpendicularly each after with a velocity of 12m/s, then the velocity of the third part which has 3 times mass of each part is 

(1) 42m/s at an angle of 45° from each body

(2) 242m/s at an angle of 135° from each body

(3) 62m/s at 135° from each body

(4) 42m/s at 135° from each body

Subtopic:  Collisions |
 67%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

A particle falls from a height h upon a fixed horizontal plane and rebounds. If e is the coefficient of restitution, the total distance travelled before rebounding has stopped is 

(1) h1+e21e2

(2) h1e21+e2

(3) h21e21+e2

(4) h21+e21e2

Subtopic:  Collisions |
 69%
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Hints

A body of mass 5 kg moving with a velocity 10m/s collides with another body of the mass 20 kg at, rest and comes to rest. The velocity of the second body due to collision is 

(1) 2.5 m/s

(2) 5 m/s

(3) 7.5 m/s

(4) 10 m/s

Subtopic:  Collisions |
 78%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

A ball of mass m moving with velocity V, makes a head on elastic collision with a ball of the same mass moving with velocity 2V towards it. Taking direction of V as positive, velocities of the two balls after collision are-

(1) –V and 2V

(2) 2 V and –V

(3) V and –2V

(4) –2V and V

Subtopic:  Collisions |
 69%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

A spacecraft of mass 'M' and moving with velocity 'v' suddenly breaks in two pieces. After the explosion one of the mass 'm' becomes stationary. What is the velocity of the other part of craft 

(1) MvMm

(2) v

(3) Mvm

(4) Mmmv 

Subtopic:  Collisions |
 75%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Two masses mA and mB moving with velocities vA and vB in opposite directions collide elastically. After that the masses mA and mB move with velocity vB and vA respectively. The ratio (mA/mB) is

(1) 1

(2) vAvBvA+vB

(3) (mA+mB)/mA

(4) vA/vB 

Subtopic:  Collisions |
 74%
From NCERT
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A tennis ball is released from height h above ground level. If the ball makes inelastic collision with the ground, to what height will it rise after third collision 

(1) he6

(2) e2h

(3) e3h

(4) None of these

Subtopic:  Collisions |
 66%
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A mass 'm' moves with a velocity 'v' and collides inelastically with another identical mass. After collision the 1st mass moves with velocity v3in a direction perpendicular to the initial direction of motion. Find the speed of the 2nd mass after collision 

(1) 23v

(2) v3

(3) v

(4) 3v

Subtopic:  Collisions |
 67%
From NCERT
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A sphere collides with another sphere of identical mass. After collision, the two spheres move. The collision is inelastic. Then the angle between the directions of the two spheres is 

1. 90°

2. 0°

3. 45°

4. Different from 90°

Subtopic:  Collisions |
From NCERT
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