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In the ballistic pendulum shown below, the block has a mass of 2.9 kg, the bullet has a mass of 0.0057 kg, and the string has a length of 1.82 m. A bullet is shot directly at the block, lodging into the block, and causing the pendulum to swing forward 20∘. What was the initial speed of the bullet, in m/s?

In the ballistic pendulum shown below, the block has a mass of 2.9 kg, the bullet has a mass of 0.0057 kg, and the string has a length of 1.82 m. A bullet is shot directly at the block, lodging into the block, and causing the pendulum to swing forward 20∘. What was the initial speed of the bullet, in m/s?

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In the ballistic pendulum shown below, the block has a mass of 2.9 k g , the bullet has a mass of 0.0057 k g , and the string has a length of 1.82 m . A bullet is shot directly at the block, lodging into the block, and causing the pendulum to swing forward 20 ∘ .
What was the initial speed of the bullet, in m / s ?

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