At what distance should a motor car, moving at a speed of 72 km/h on a highway behind a truck also moving at 72 km/h, be from the truck when the truck gives an emergency stop signal, assuming the human response time is 0.5s and the car can not come to a stop in less than 3.0s while the truck requires 5.0s to come to a stop?

Question

At what distance should a motor car, moving at a speed of 72 km/h on a highway behind a truck also moving at 72 km/h, be from the truck when the truck gives an emergency stop signal, assuming the human response time is 0.5s and the car can not come to a stop in less than 3.0s while the truck requires 5.0s to come to a stop?, 1.25 m, 2.5 m, 3.75 m, 5.0 m

MARKS App · Accepted Answer

Correct Option is : (A) 1.25 m

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