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A meteorite that has a mass equal to 30.8 tonne (1 tonne = 1000 kg) is exhibited in the American Museum of Natural History in New York City. Suppose that the kinetic energy of the meteorite as it hit the ground was 504 MJ.

(a) Find the magnitude of the impulse experienced by the meteorite up to the time its kinetic energy was halved (which took about t = 3.2 s).

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