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Class 11 NEET Physics Work, Energy and Power Questions

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Question : 20

Total: 89

A bullet of mass 10 g moving horizontally with a velocity of 400ms–1 strikes of 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

160‌ms–1
100‌ms–1
80‌ms–1
120‌ms–1

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