\[(a)\;3v\; \cos \theta \quad (b)\;2v\; \cos \theta \quad (c)\;v\; \cos \theta \quad (d)\;\frac{3}{2}v\; \cos \theta\]

Want to ask us a question? Click here

Browse Questions

Ad |

0 votes

0 votes

A shell fired at angle $'\theta'$ velocity of shell at highest point is $v \cos \theta$

Let its mass be m

speed of one piece $=v \cos \theta$

Let speed of other piece $=v'$

Using conservation of momentum

$mv \cos \theta=\large\frac{m}{2} $$ v \cos \theta+\large\frac{m}{2}v'$

Therefore $v'=3v \cos \theta$

Hence a is the correct answer.

Ask Question

Take Test

x

JEE MAIN, CBSE, NEET Mobile and Tablet App

The ultimate mobile app to help you crack your examinations

...