Question 1

1. The function $h=-4.9t^2+91.68t+8940$ and the line $y=8940$ are shown in the graph.  What do the coordinates $(18.7, 8940)$ represent?

Accepted Answer

The weightlessness lasted for $18.7$ seconds and ended when the plane came back down to an altitude of $8940$ meters.

Answer

The maximum altitude was $18.7$ meters at $8940$ seconds.

Answer

The weightlessness lasted for $8940$ seconds and ended when the plane came back down to an altitude of $18.7$ meters.

Answer

The maximum altitude was $8940$ meters at $18.7$ seconds.

Question 2

2. Find the maximum altitude of the plane during one parabolic maneuver and when it occurs.

Accepted Answer

The maximum altitude was $9369$ meters at $9.4$ seconds.

Answer

The maximum altitude was $9.4$ meters at $9369$ seconds.

Answer

The maximum altitude was $18.7$ meters at $8940$ seconds.

Answer

The maximum altitude was $8940$ meters at $18.7$ seconds.

Question 3

3. If the pilot flew for 2.5 hours and did 60 parabolas, what percent of the total flight was spent in microgravity? There are $3600$ seconds in $1$ hour.

Accepted Answer

6%

Answer

7.5%

Answer

60%

Answer

18.7%

Question 4

4. The equation $h=-4.9t^2+91.68t+8600$ changes so that the starting velocity is $84.19$ m/s. How does the graph change?

Accepted Answer

The maximum altitude and the time in microgravity both decrease.

Answer

The maximum altitude increases and the time in microgravity stays the same.

Answer

The maximum altitude increases and the time in microgravity increases.

Answer

The maximum altitude decreases and the time in microgravity stays the same.

Question 5

5. If the equation changes to $h=-4.9t^2+91.68t+8600$, explain how the graph changes.

Accepted Answer

All altitude values decrease by 340 meters, but the length of time in microgravity will not change.

Answer

All altitude values decrease by 340 meters, and the length of time in microgravity will decrease.

Answer

All altitude values increase by 340 meters, and the length of time in microgravity will increase.

Answer

All altitude values increase by 340 meters, and the length of time in microgravity will decrease.

Related quizzes

Related quizzes