Question

Two cars A and B are approaching each other
head-on with speeds 20 m/s and 10 m/s
respectively. When their separation is X then A and
B start braking at 4 m/s2 and 2m/s2 respectively.
Minimum value of X to avoid collision is
7.
11.
(1) 60 m
nu.
(2) 75 m
(3) 80 m
m
(4) 90 m
​

Answer 1

Answer:

I think 2. 75 is the right answer

Answer 2

Answer:

This is your requited answer.