Question

A car travels down a highway at 25 m/s. An observer stands 150 m from the highway.

(a) How fast is the distance from the observer to the car increasing when the car passes in front of the observer?
Explain your answer without making any calculations.

(b) How fast is the distance increasing 20 s later?

Answer 1

So base on your question about a car travels down a highway at 25m/s and the observer stand 150 m from the highway so the following are the answer
A.I think the best answer of this question is 0 because the car is already in the front of the observer.
B. Base on my calculation the answer is 72.7m/s^2