A model rocket is launched straight up from level ground. The engine of the rocket burns for about 3 seconds and is completely burned out after 4.5 seconds. Acceleration readings are made every 0.5 seconds, and are shown in Table P9.7. Positive accelerations are upward. After the engine burns out, the acceleration will be –g, the acceleration due to gravity, or –9.8 m/s2. Using Excel, find: - the time at which the rocket hits the ground - the speed at which the rocket hits the ground
A model rocket is launched straight up from level ground. The engine of the rocket burns for about 3 seconds and is completely burned out after 4.5 seconds. Acceleration readings are made every 0.5 seconds, and are shown in Table P9.7. Positive accelerations are upward. After the engine burns out, the acceleration will be –g, the acceleration due to gravity, or –9.8 m/s2. Using Excel, find: - the time at which the rocket hits the ground - the speed at which the rocket hits the ground
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A model rocket is launched straight up from level ground. The engine of
the rocket burns for about 3 seconds and is completely burned out after
4.5 seconds. Acceleration readings are made every 0.5 seconds, and are
shown in Table P9.7. Positive accelerations are upward. After the engine
burns out, the acceleration will be –g, the acceleration due to gravity, or
–9.8 m/s2. Using Excel, find:
- the time at which the rocket hits the ground
- the speed at which the rocket hits the ground
Transcribed Image Text:Table P9.7 Acceleration of Rocket
Time, s
Acceleration, m/s²
0.5
30.1
1
32.4
1.5
33.6
2
35.1
2.5
38.7
3
34.2
3.5
18.1
4
-2.4
4.5
-9.8
-9.8
a = -9.8 m/s? for remainder of flight
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