SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

An elastic collision taken place between two smooth, rubber balls same radius as shown in fig. Initially, one ball is at rest and the other is moving with velocity . At maximum compression

i. ratio of potential to initial KE of the system is )/2

ii. ball  is moving along direction

iii. ball  is moving along direction  or

iv. value of  can not be used to finalise maximum compression velocities

Evaluate the above statements and choose the correct option from the following:

a)

Statements i, ii are true and iii, iv are false

b)

Statements  i, ii are false and iii,iv are true

c)

All statements are true

d)

All statements are false


Question ID - 100210 :-

An elastic collision taken place between two smooth, rubber balls same radius as shown in fig. Initially, one ball is at rest and the other is moving with velocity . At maximum compression

i. ratio of potential to initial KE of the system is )/2

ii. ball  is moving along direction

iii. ball  is moving along direction  or

iv. value of  can not be used to finalise maximum compression velocities

Evaluate the above statements and choose the correct option from the following:

a)

Statements i, ii are true and iii, iv are false

b)

Statements  i, ii are false and iii,iv are true

c)

All statements are true

d)

All statements are false

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

Initial KE

At the time of maximum compression,

Change in

Change in KE= PE

At the time of max.Compression, impulse on  is along direction  and that on  is in opposite direction. But the component of velocity of  in direction perpendicular to  is unchanged



Next Question :

A ball of mass  moving with velocity  makes an oblique elastic collision with a stationary ball of mass 2  The angle of divergence between the balls after  collision in ground frame, if the ball of mass  turns by an angle of  in centre of mass frame is

a)

b)

c)

d)


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