問題詳情
41. Car A leaves point O at t = 0 and travels counterclockwisely along a quarter circleof radius 100 m at constant speed 30.0 m/s to reach point P. Car B is supposed toleave point O and travels to point P at the same speed but along a straight line. Atwhat time should car B leave point O in order to arrive at point P at the same timeas car A?
(A)t=-4.71 s
(B)t=-0.53s
(C)t=0
(D)t=0.53s
(E)t=4.71s
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增