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Grade 12th passMechanics

if a body move with u velocity then after collide with wall and remove with v velocity what is the impulse

aman

9 Years agoGrade 12th pass

1 Answer

Ankit Jaiswal

9 Years ago

Hi aman,

I think this might help

as we know that Impulse

$J = \int F.dt$

and also F=m(dv/dt) so (here m is the mass of body and dv/dt =acc) $J = \int m(\frac{dv}{dt}).dt$

$\therefore J = \int m.dv$

$\therefore J = \Delta \overrightarrow{p}$

here p is the momentum ans delta p is change in momentum

hence in the above question using

impule = change in momentum

= $m\overrightarrow{v}-m\overrightarrow{u} =m(\overrightarrow{v}-\overrightarrow{u})$

plz approve if u found it usefull

thanks

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