# Two particles of masses  and  and velocities and  make an elastic head on collision. If the initial kinetic energies of the two particles are equal and comes to rest after collision, then a) b) c) d)

## Question ID - 100779 :- Two particles of masses  and  and velocities and  make an elastic head on collision. If the initial kinetic energies of the two particles are equal and comes to rest after collision, then a) b) c) d)

1 Answer
5876 Votes
3537

Answer Key : (a,c) -

(a,c)

Since both masses have equal kinetic energy, so

(i)

By law of conservation of momentum

(ii)

Further by law of conservation of energy we have

(iii)

From Eqs. (ii) and (iii), we get

Next Question :
 A thin circular ring of mass  and radius  is rotating about its axis with a constant angular velocity . Two objects, each of mass , are attached gently to the opposite ends of the diameter of the ring. The wheel now rotates with an angular velocity a) b) c) d)

View Topper Answer

We hope we have given the updated helpful answer / content for your query in an easily accessible format to help you in preparing adequately. We do offer free support materials, 11th maths guide 11th maths guide 12th maths guide 10th maths guide, also for all the classes books and guide to all the students who sign up for SaraNextGen. Apart from traditional textbook queries, we've got conjointly provided further high order level thinking issues, that are seemingly to be expected in boards and competitive exams. It includes conceptual queries, MCQs, Long and short answer type queries, etc. These Questions are designed to learn each student and academics by providing chapter-wise further issues focusing totally on testing conceptual information with applications. Here, we've got provided a number of the necessary ways in which within which the solutions of all the Questions will profit students of class 1 to 12. If you have any queries, drop a message to us and we will get back to you at the earliest.