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 $



NCERT Chapter Video Solution

Dual Pane