What is the resulting increase in the speed of the car

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You stand on a long flatbed railroad car which you estimate weighs about 4 times your own weight. Initially, the car rolls straight along the ground at 20 m/s, with negligible friction. You then begin to run across the top of the car opposite its own direction of motion relative to the ground. You estimate that your speed is about 5 m relative to the car. What is the resulting increase in the speed of the car?

Reference no: EM13983354

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