Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • A ball is dropped from a height of . If the coefficient of restitution for the collision b

A ball is dropped from a height of 20 \mathrm{~m}. If the coefficient of restitution for the collision between ball and floor is 0.5, after hitting the floor, the ball rebounds to a height of ________ \mathrm{m}

Option: 1

5


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer


\mathrm{V}=\sqrt{2 \mathrm{~g}(20)}
\mathrm{eV}=\sqrt{2 \mathrm{gh}}

\frac{1}{\mathrm{e}}=\sqrt{\frac{20}{\mathrm{~h}}}
\mathrm{h}=20 \mathrm{e}^{2}=20\left(\frac{1}{2}\right)^{2}
\mathrm{h}=5 \mathrm{~m}

Posted by

Devendra Khairwa

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025 Session 2 City Slip (OUT) Live: NTA exam city intimation slip link available; admit card date
anam-khan

AESL expands Aakash Digital 2.0 to offer AI-powered coaching for NEET, JEE, Olympiads
anam-khan

Bihar Board extends BSEB Super 50 free coaching application last date to March 26

Latest Question