A bullet is fired at a plank with a speed of 200 m/s. After passing through the plank…
Physics · NEET · NTA Exams — Work, Energy and Power
A bullet is fired at a plank with a speed of 200 m/s. After passing through the plank, its speed reduces to 180 m/s. Another bullet which has exactly the same mass and size is fired at the same plank at the speed of 100 m/s. The speed of bullet after it comes out from the plank is
- 90 m/s
- 45 m/s
- 49 m/s
- None of these
Answer
(D) None of these
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