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# Inelastic collision and ballistic pendulum

- A 38g bullet is fired at a stationary bag which is hanging vertically from the ceiling. The speed of the bullet is 180m/s. If the mass of the bag is 5.0kg, what is the maximum height it will reach?

- A spring is compress 8.7cm between two carts of 1.0kg and 1.5kg respectively. If the spring constant is 89N/m what is the velocity of the heavier cart.

#### Solution Preview

Please see the attachment for a more detailed solution.

When a bullet ( of mass 'm') hits a Block ( of mass M) with a speed 'v' and get arrested in the block, the bullet and block system will start moving with a speed 'Vb'.

This speed can be calculated from the law of conservation of Momentum as

For the qn no 2) :

When a bullet ( of mass 'm') hits a Block ( of mass M) with a ...

#### Solution Summary

When a bullet ( of mass 'm') hits a Block ( of mass M) with a speed 'v' and get arrested in the block, the bullet and block system will start moving with a speed 'Vb'.

This speed can be calculated from the law of conservation of Momentum. The solution is a detailed answer with all the calculations shown.

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