1. An 800-N passenger in a car presses against the car door with a 200 N force when the car makes a left turn at 13 m/s. The door will pop open under a force of 800 N. Of the following, the least speed for which the passenger is thrown out of the car is:
(A) 14 m/s
(B) 19 m/s
(C) 20 m/s
(D) 26 m/s
(E) 54 m/s
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統計: 尚無統計資料
統計: 尚無統計資料