SaraNextGen Study App [2023-24]
Last Updated On [03-11-2023]

A ball of mass  makes head-on elastic collision with a ball of mass  which is initially at rest. Show that the fractional transfer of energy by the first ball is . Deduce the value of  for which the transfer is maximum


Question ID - 101432 :-

A ball of mass  makes head-on elastic collision with a ball of mass  which is initially at rest. Show that the fractional transfer of energy by the first ball is . Deduce the value of  for which the transfer is maximum

1 Answer
5876 Votes
3537

Answer Key : (1) -

(1)

Let  be the initial velocity of the ball of mass . Then

(i)

For elastic collision, Newton’s experimental formula is

(ii)

Solving Eqs. (i) and (ii),

Fractional loss in KE (= fractional transfer of KE)

The transfer of energy is maximum when  or

This is, the transfer of energy is maximum when the mass ratio is unity



Next Question :

A man standing on a trolley pushes another identical trolley (both trolleys are at rest on a rough surface), so that they are set in motion and stop after some time. If the ratio of mass of first trolley with man to mass of second trolley is 3, then find the ratio of the stopping distances of the second trolley to that of the first trolley. (Assume coefficient of friction to be the same for both the trolleys)


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.


SaraNextGen