A 12.0-g bullet is fired horizontally into a 100-g wooden block that is initially at rest on a frict

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A 12.0-g bullet is fired horizontally into a 100-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 150 N/m. The bullet becomes embedded in the block. If the bullet–block system compresses the spring by a maximum of 80.0 cm, what was the speed of the bullet at impact with the block?
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Thank you very much you deserve more subscribers

abdullahmohammad
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why did you not consider gravitational energy?is it not that whenever an object has mass gravity always acts on the object?is gravity not acting on the block?

lamerantao
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sir can you send the link of whole solution chapter plz

muhammadfaizan