Question

An airplane was moving 1200 km per minute traveling in a north-to-south direction when they were spotted by air traffic control. Because they were only 2 miles off the ground and 5 miles away the airplane was contacted for safety concerns.
Which best describes the motion of the airplane?

Its acceleration was 1200 km/s
Its speed was 1200 km/m southward
Its velocity was 20 km/s southward
Its velocity was 20 km/m

Answer 1

Its velocity was 20 km/s southward

Answer 2

Answer:

Its velocity was 20 km/s southward

Explanation:

As we know that airplane is moving from North to South

So here we will have

$v = 1200 km/min$

now we know

1 min = 60 s

so we will have

$v = 1200 \times \frac{1}{60}$

$v = 20 km/s$

so the velocity of the airplane is towards South moving with speed v = 20 km/s so correct answer will be

Its velocity was 20 km/s southward