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【Daily Question】Theoretical Foundation 2020.02.21

2020-02-21View Original

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Multiple-choice question: A car with a weight of 2800 W moves at a constant speed of 10 m/s and crashes into a rigid depression. The radius of curvature of this road is 5 m, and g is taken as 10 m/s2. Then the magnitude of the restraining force exerted by the ground on the car at this point is ( ). A.5600N B.2800N C.3360N D.8400N Answer: D Hint: Extra rewards will be given to those who can explain the solution process; the answer can be found in the response!

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