Question

part a: calculate the average speed for the short, medium, and long ramps. fill in the average speed in the data chart below.

	ramp length (meters)	time (seconds)	average speed (m/s)
medium ramp	6	3
long ramp	9	3.6

Explanation:

Step1: Recall speed formula

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

Step2: Calculate short - ramp speed

For the short ramp, $d = 3$ meters and $t = 2$ seconds. So $v_{short}=\frac{3}{2}=1.5$ m/s.

Step3: Calculate medium - ramp speed

For the medium ramp, $d = 6$ meters and $t = 3$ seconds. So $v_{medium}=\frac{6}{3}=2$ m/s.

Step4: Calculate long - ramp speed

For the long ramp, $d = 9$ meters and $t = 3.6$ seconds. So $v_{long}=\frac{9}{3.6}=2.5$ m/s.

Answer:

Short Ramp: 1.5 m/s
Medium Ramp: 2 m/s
Long Ramp: 2.5 m/s