You visited us 1 times! Enjoying our articles? Unlock Full Access!

Dropping Objects

A perfectly e...

Question

A perfectly elastic ball $p_{1}$ of mass 'm' moving with velocity v collides elastically with three exactly similar balls $p_{2}$ , $p_{3}$ , $p_{4}$ lying on a smooth table. Velocities of the four balls after collision are

0,0,0,0

No worries! We‘ve got your back. Try BYJU‘S free classes today!

v,v,v,v

No worries! We‘ve got your back. Try BYJU‘S free classes today!

v,v,v,0

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0,0,0,v

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 0,0,0,v
$W h e n P_{1} a n d P_{2} c o l l i d e, t h e i r m o m e n t u m i s e x c h a n g e d (s i n c e t h e c o l l s i o n i s e l a s t i c a n d t h e t w o b o d i e s a r e s i m i l a r) . W h e n P_{2} a n d P_{3} s a m e t h i n g h a p p e n s . T h u s t h e m o m e n t u m o f P_{1} i s f i n a l l y t r a n s f e r r e d t o P_{4} . P_{1}, P_{2} a n d P_{3} w i l l h a v e z e r o v e l o c i t y a n d P_{4} w i l l h a v e v e l o c i t y = v .$

Suggest Corrections

Similar questions

P_{1}, P_{2}

P_{3}

m

P

v

M

\to V

M

- \to V

m_{1}

v

m_{2}

\frac{v}{3}

\frac{m_{2}}{m_{1}}

Join BYJU'S Learning Program