The tax man greedily snatches Jack’s check out of his hands. He turns around and scampers away, his four chins swaying like hay in the wind. But, as his blubbery hand flops onto the door knob, Jack has a change of heart. His body accelerates from a standstill to 1,373 meters per second toward the taxman. If Jack weighs 62 kilograms, how many newtons of force will he exert upon the tax man’s body when they make contact, assuming that the air exercises 15 newtons of drag on him?

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