9. if the velocity of a car is 45 km/h west, how far can it travel in 0.5 hours? equation: plug numbers into…

Explanation:

Step1: Recall distance - velocity - time formula

The formula is $d = v\times t$, where $d$ is distance, $v$ is velocity and $t$ is time.

Step2: Plug in values for car problem

Given $v = 45$ km/h and $t=0.5$ h. So $d = 45\times0.5$ km.

Step3: Calculate distance for car

$d = 22.5$ km.

Step4: Recall velocity - distance - time formula for rocket problem

The formula for velocity is $v=\frac{d}{t}$, where $d$ is distance and $t$ is time.

Step5: Plug in values for rocket problem

Given $d = 700$ km and $t = 25$ s. So $v=\frac{700}{25}$ km/s.

Step6: Calculate velocity for rocket

$v = 28$ km/s.

Answer:

For the car, the distance is 22.5 km. For the rocket, the velocity is 28 km/s.