A bullet of mass 0.01 kg and travelling at a speed of 500 m/s strikes a block of mass 2…
Physics · JEE Advanced · NTA Exams — Laws of Motion
A bullet of mass 0.01 kg and travelling at a speed of 500 m/s strikes a block of mass 2 kg, which is suspended by a string of length 5 m. The centre of gravity of the block is found to rise a vertical distance of 0.1 m. What is the speed of the bullet after it emerges from the block :
- 780 m/s
- 220 m/s
- 1.4 m/s
- 7.8 m/s
Answer
(B) 220 m/s
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