the graph below shows the altitude, in feet, of a model rocket t seconds after launch. during this time, the…

the graph below shows the altitude, in feet, of a model rocket t seconds after launch. during this time, the rocket experiences three distinct modes of flight. initially, the engine accelerates the rocket upward. the rocket then coasts upward, is slowed by gravity, and eventually begins to fall. last, a parachute opens and the rocket drifts smoothly back to the ground. when was the model rocket 600 feet above the ground? 4.5 seconds 7 seconds 7 and 9.5 seconds 4.5 and 12 seconds save and exit next submit
Answer
Explanation:
Step1: Locate 600 - feet on graph
Find the 600 - feet mark on the altitude axis.
Step2: Find corresponding times
Draw a horizontal line at 600 feet and see where it intersects the rocket - altitude curve. The intersections give the times when the rocket is at 600 feet. From the graph, we can see that the rocket is at 600 feet at approximately 4.5 seconds on the way up and 12 seconds on the way down.
Answer:
4.5 and 12 seconds