Topic: Elastic and inelastic collisions in one and two dimensions· Work, Energy and Power
A bullet of mass 10 g moving horizontally with a velocity of 400 m s^-1 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 d…
A bullet of mass 10 g moving horizontally with a velocity of 400 m s\(^{-1}\) 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. 80 m s\(^{-1}\)
2. 120 m s\(^{-1}\)
3. 160 m s\(^{-1}\)
4. 100 m s\(^{-1}\)