SaraNextGen Study App [2022-23]
Last Updated On 18-12-2022 - By Jeesha Sara

Three particles  and  of equal masses move with equal speeds along the medians of an equilateral triangle. They collide at the centroid  of the triangle. After collision comes to rest while  retraces its path with speed  The velocity of  is then

a)

 direction

b)

 direction

c)

2  direction

d)

 direction


Question ID - 100201 :-

Three particles  and  of equal masses move with equal speeds along the medians of an equilateral triangle. They collide at the centroid  of the triangle. After collision comes to rest while  retraces its path with speed  The velocity of  is then

a)

 direction

b)

 direction

c)

2  direction

d)

 direction

1 Answer
5876 Votes
3537

Answer Key : (d) -

(d)

Initial momentum of the system is zero. So,final momentum should also be zero. Finally,  comes to rest after collision so to have final momentum zero, and  should move in opposite directions



Next Question :

Two bodies with moments of inertia and  have equal angular momenta. If their kinetic energies of rotation are and , respectively, then

a)

b)

c)

d)


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