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Work Power and Energy question

2021 · 17 Mar · Shift 1 · Q43
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  5. /2021 · 17 Mar · Shift 1 · Q43

Work Power and Energy question

2021 · 17 Mar · Shift 1 · Q43

JEE MainPhysicsWork Power and EnergyMCQ+4 / −1
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?
  1. A
    14.41 ms −-− 1
  2. B
    19.0 ms −-− 1
  3. C
    4.47 ms −-− 1
  4. D
    1.00 ms −-− 1
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