A particle of mass `2 kg` moving with a velocity of `3 m//s` is acted upon by a force which changes its direction of motion by an angle of `90^(@)` without changing its speed. What is the magnitude of impulse experienced by the particle?

Options

A. `6Ns`
B. `2Ns`
C. `3sqrt(2)Ns`
D. `6sqrt(2)Ns`

Answer

D

Explanation

`vecP_(1)=2xx3hati=6hati, vecP_(2)=6hatj`
`vecI=vecP_(2)-vecP_(1)=6hatJ-6hati`
or `I=sqrt(6^(2)+6^(2))=6sqrt(2)s`