Question

you travel 200 km in 2 h. your ____ speed is 100 km/h.
a. average
b. constant
c. initial
d. instantaneous

Explanation:

Step1: Recall speed - related concepts

Average speed is calculated as total distance divided by total time.

Step2: Calculate the given speed

Given distance $d = 200$ km and time $t=2$ h. The speed $v=\frac{d}{t}=\frac{200}{2}=100$ km/h. This is calculated over a time - interval of 2 h, so it is the average speed. Constant speed means the speed does not change at any instant. Initial speed is the speed at the start, and instantaneous speed is the speed at a particular instant.

Answer:

A. average