Knockout JEE Main April 2021 (One Month)
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A mass m moves with a velocity and collides inelastically with another identical mass .After collision the first mass moves with velocity in a direction perpendicular to the initial direction of motion.Find the speed of the 2nd mass after collision
Option 1)
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Option 2)
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Option 3)
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Option 4)
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As we learnt in
Elastic Collision in 2 dimension -
- wherein
From conservation of momentum
Along x - direction Pxi = Pxf
Along y - direction
v1 &
are speed and angle of inclination for 2nd mass.
Square and add the two equation
Correct answer is 1
Option 1)
This is the correct option.
Option 2)
This is an incorrect option.
Option 3)
This is an incorrect option.
Option 4)
This is an incorrect option.