Question

Two cars A and B are moving towards each other
with a speed of 30 m/s and 20 m/s respectively.
When they are 1050 metres apart, car A blows his
horn. Find-
a. the time after which car B hears the horn sound.

b. the distance covered by car B when it hears the
sound.

c. time after which car A hears the echo coming
from car B.

d. distance covered by car A by the time it hears
the echo.

Answer 1

Answer:

d is the answer for this question