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A bullet of mass 10g moving horizontally with a velocity of 400 m/s strikes a wooden block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a result, the centre of gravity of the block is found to rise a vertical distance of 10 cm. The speed of the bullet after it emerges out horizontally from the block will be :- (1) 120 m/s (2) 160 m/s (3) 100 m/s (4) 80 m/s

 
A bullet of mass 10g moving horizontally with a velocity of 400 m/s strikes a wooden block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a result, the centre of gravity of the block is found to rise a vertical distance of 10 cm. The speed of the bullet after it emerges out horizontally from the block will be :-
(1) 120 m/s
(2) 160 m/s
(3) 100 m/s
(4) 80 m/s

Grade:12th pass

1 Answers

Sandeep Bhamoo
443 Points
5 years ago
Do approve my reply and let me know if the answer is first option so that i may provide you with solution and if it is not let me try other method

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