Question

The driver of a car takes 0.2s to apply the brakes when needed ( this is the reaction time ) . The driver finds a boy standing on the road 54m from the car .What is the minimum retardation needed by the car to save the boy ?

Answer 1

We also need to know the car's velocity.

Answer 2

That's the exact problem ...that's all the information that's given .

Answer 3

Cars do not have any mental capabilities, and therefore can not be deemed "retarded." They are inanimate objects, not living organisms.

Answer 4

fair enough ...its true ..but still doesn't give me any answer :P