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An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform.

Simone shot a flare vertically into the air. The graph shows the flare’s height above the ground over time elapsed since firing. Decide which sentence is a good match for the graph. A. Simone fired the flare from the ground. It reached a maximum height of 112.5 feet after 2.5 seconds.

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An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform.

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  1. Simone shot a flare vertically into the air. The graph shows the flare’s height above the ground over time elapsed since firing. Decide which sentence is a good match for the graph. A. Simone fired the flare from the ground. It reached a maximum height of 112.5 feet after 2.5 seconds. B. The flare was fired from a platform 5.15 feet above the ground and reached a maximum height of 112.5 feet after 2.5 seconds. C. The flare was fired from a platform 12.5 feet above the ground, reached a maximum height of 112.5 feet, and stayed in the air for 5.15 seconds. D. Simone’s flare reached a height of 100 feet after 2.5 seconds.

  2. An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. When does the object strike the ground?

  3. An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. What will be the object's maximum height? When will it attain this height?

  4. After the semester is over, you discover that the math department has changed textbooks (finally) so you do not need to return your book. You and your friend Herman decide to get creative. You go to the roof of a twelve story building and look over the edge to the reflecting pool 160 feet below. You drop your book over the edge at the same instant that Herman chucks his book straight down at 48 feet per second. By how many seconds does his book beat yours into the water?

  5. Some fireworks are fired vertically into the air from the ground at an initial velocity of 80 feet per second. Find the highest point reached by the projectile just as it explodes.

  6. An over zealous golfer hits a flop shot with a sand wedge to get out of the corner of a sand trap with an initial velocity of 45 feet per second. What is the maximum height that the golf ball will reach?

  7. For Extra Credit • Re-do two of the problems on different planets. • Choose any question. For one use Gravity on Jupiter (higher than earth) and one use Gravity on Mars (lower than Earth) • Answers might be kind of interesting!

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