A boy is rolling a 0.5 kg ball on the frictionless floor with the speed of 20 ms -1 the ball gets deflected by an obstacle on the way. After deflection it moves with 5% of its initial kinetic energy. What is the speed of the ball now ?
Option: 1
Option: 2
Option: 3
Option: 4
Given,
Initial kinetic energy
After deflection, it moves with 5 % of
Now, let the final speed be 'v' m/s, then :
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