Question

An 8 g bullet is shot into a 4.0 kg block, at rest on a frictionless horizontal surface. The bullet remains lodged in the block. The block moves into a spring and compresses it by 7.9 cm. The force constant of the spring is 1400 N/m. What is the impulse of the block (including the bullet), due to the spring, during the entire time interval in which block and spring?
Your last sentence needs to end with a verb
6.65Ns

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