Now there are two terminal speeds in a single jump; one before the parachute opens and the other after the parachute opens. The one before opening the parachute is faster and the other when the parachute is opened is slower. The difference is due to the change in the exposed area of the parachute. When the parachute is closed the frontal or exposed area is smaller. As a consequence, the drag force is smaller and the terminal speed is attained after a greater downwards velocity. On the other hand, when the frontal is expanded after the parachute opens, the drag force increases which decreases the downward fall of the an therefore, the terminal velocity also decreases.
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