Yes you're correct. For distance, SI is based on meters.
Answer:
37.42 m/s
Explanation:
We know that apparent frequency,
is given by
where f is the given frequency in this case 392, V is the speed of sound in air which is given as 343 and
is the speed of car which is unknown, \bar f is given as 440 Hz

The body will take 20 seconds to cover a distance of 1000 m i.e. 1 km
Answer:
30.5
Explanation:
because you will basically have to be like flash