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く12.1.2 Item 6 the normal reaction šime for drivers). When he applies his ft d 60.3
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Answer #1

Car A will travel .75 second more than Car B, because Car A applied brakes after .75 second.

During this .75 second Car A had its velocity 60 ft/s.

Therefore we can easily calculate that Car A travelled S= 60 * 0.75 ft more than Car B.

\impliesS= 45 ft

Therefore, we can say that car A need to be behind Car B for a minimum distance 45 ft, if this satisfies then they will never collide.

\therefore Minimum distance between the= 45 ft

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