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A bullet moving with velocity 100m/s penetrates through a wooden block and emerges from a block with velocity 10m/s. If the width of block is halved what would be the velocity of bullet after emerging from the block

Question

A bullet moving with velocity 100m/s penetrates through a wooden block and emerges from a block with velocity 10m/s. If the width of block is halved what would be the velocity of bullet after emerging from the block

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Solution

The problem doesn't provide enough information to give a definitive answer. The velocity of the bullet after emerging from the block depends on various factors such as the material properties of the block, the shape and mass of the bullet, and the interaction between the bullet and the block.

However, if we assume that the block slows down the bullet at a constant rate (which is a big assumption and likely not accurate in a real-world scenario), then we could say that the velocity of the bullet decreases by 90 m/s when it passes through the original block. If the width of the block is halved, then the bullet would only slow down by half as much, or 45 m/s. So, the bullet would emerge from the block with a velocity of 100 m/s - 45 m/s = 55 m/s.

Again, this is a very simplified model and likely not accurate in a real-world scenario. The actual velocity of the bullet after emerging from the block would likely be different and would require more information to calculate accurately.

This problem has been solved

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