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Q. A 13000 kg railroad car travels alone on a level frictionless track with a constant speed of 17 m/s. A 6500 kg load, originally at rest, is dropped onto the car. What will be the car's new speed?

Q. A wheel 50.00 cm in diameter accelerates uniformly from 225 rpm to 380 rpm in 5.00 s. How far will a point on the edge of the wheel have travelled in this time?

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Category:- Physics
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