Work Energy And Power Question 51
Question: A car travelling at a speed of 30 km/hour is brought to a halt in 8 m by applying brakes. If the same car is travelling at 60 km/hour, it can be brought to a halt with the same braking force in [NCERT 1976]
Options:
A) 8 m
B) 16 m
C) 24 m
D) 32 m
Show Answer
Answer:
Correct Answer: D
Solution:
$ s\propto u^{2} $ i.e. if speed becomes double then stopping distance will become four times i.e. $ 8\times 4=32m $
