試題詳解

8. Arace car traveling at 100 m/s enters an unbanked turn of 400 m radius. The coeffic ion between the tires and the track is 1 .1. The track has both an inner and an outer statement is correct?
(A) The race car will crash into the outer wall.
(B) The race car will crash into the inner wall.
(C) The car will stay in the center of the track.
(D) The car will stay in the er of the track if the driver speeds up.
(E) The car would stay in the center of the radius were reduced to 200 m.