178k views
3 votes
If a roller coaster starts 12 meters above the ground and climbs 2 meters every second -s., the roller coaster’s height -ℎ. would be based on the equation ℎ = 2s 12. how long would it take to reach the top of the hill that is 80 meters above the ground?

User ZHOU
by
7.4k points

1 Answer

4 votes

Final answer:

It would take the roller coaster 34 seconds to reach the top of the hill that is 80 meters above the ground, using the equation h = 2s + 12 and solving for the time s.

Step-by-step explanation:

To determine how long it would take for the roller coaster to reach the top of the hill that is 80 meters above the ground, we can use the given equation h = 2s + 12, where h represents the height in meters, and s represents the time in seconds. We are given that the roller coaster starts 12 meters above the ground and climbs 2 meters every second. To find the time s when the roller coaster reaches 80 meters high, we set the equation equal to 80 meters:

80 = 2s + 12

Subtracting 12 from both sides gives us:

68 = 2s

Dividing both sides by 2 yields:

s = 34

Therefore, it would take the roller coaster 34 seconds to reach the top of the hill that is 80 meters above the ground.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.