Question

pls answer this question ​

Answer 1

Before the particle strike,

Linear momentum perpendicular to the wall=mvsin(30

o

)=

2

mv

Linear momentum along to the wall=mvcos(30

o

)

After the particle strike,

Linear momentum perpendicular to the wall=−mvsin(30

o

)=−

2

mv

Linear momentum along to the wall=mvcos(30

o

)

Impulse=change in linear momentum,

Linear Momentum changed only perpendicular to the wall.

⇒Impulse=−

2

mv

−

2

mv

=−mv

Magnitude of Impulse is mv