| The velocity-time graph of a model rocket is shown on the right. If the rocket travels vertically skyward at what point on the graph does the parachute deploy? |
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| A) A |
| B) B |
| C) C |
| D) D |
| E) According to the graph the parachute is never deployed. |
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When the parachute is deployed the force of drag equals the gravitational force pushing the rocket downwards. We can see this at point C where the velocity is constant. Constant velocity indicates that no force is acting or balanced froces are acting on the rocket.
(c) Dynamic Science.