Answer:
The model is s = k

Explanation:
- Direct proportion means that two quantities increase or decrease in the same ratio
- If y is directly proportion with x (y ∝ x), then y = k x, where k is the proportionality constant or
= k
- Direct proportional represented graphically by a straight line passes through the origin
∵ s is directly proportional to the fifth power of t
- Fifth power of t means
∴ s ∝
∴ s = k
, where k is proportionality constant
The model is s = k
