Solve this : Q Two identical balls each moving with speed v at right angle to each - Physics - Work Energy And Power

Question

Solve this :

Q Two identical balls each moving with speed v at
right angle to each other collide perfectly inelastically Their
speed after collision is

( 1 )     v            
                 
                 
                 
            ( 2 )     2
  v ( 3 )     v 2          
                 
                 
                 
            ( 4 )     v 2

Shobhit Mittal · Accepted Answer

Dear Student,

after collision both will move together 
let they travel with v'let after collision they move togethr with angle theta with  x axis 
conservation in x axis mv=2mv'cosθconservation in y axis mv=2mv'sinθsolve the above eqn θ=45 degreev'=v2sin45=v2option 4Regards

Solve this : Q. Two identical balls each moving with speed v at right angle to each other collide perfectly inelastically. Their speed after collision is ( 1 ) v ( 2 ) 2 v ( 3 ) v 2 ( 4 ) v 2

Solve this :

Q. Two identical balls each moving with speed v at right angle to each other collide perfectly inelastically. Their speed after collision is

$(1) v (2) \sqrt{2} v (3) \frac{v}{2} (4) \frac{v}{\sqrt{2}}$