When measuring the speed of the ball as it leaves the launcher (in the Kinetic E
ID: 2137206 • Letter: W
Question
When measuring the speed of the ball as it leaves the launcher (in the Kinetic Energy part of the lab), is it better to make this measurement with the launcher oriented horizontally or vertically? Explain.
The best estimate of the initial speed is found when the launcher is oriented horizontally since air resistance is much greater when launching vertically.The best estimate of the initial speed is found when the launcher is oriented vertically since air resistance is much greater when launching horizontally. The best estimate of the initial speed is found when the launcher is oriented vertically since the ball will be slowing down when launched horizontally.Equally good estimates of the initial speed are found when the launcher is oriented either horizontally or vertically since both cases involve only elastic potential energy (of the spring) and kinetic energy.The best estimate of the initial speed is found when the launcher is oriented horizontally since the ball will be slowing down when launched vertically.
Explanation / Answer
The best estimate of the initial speed is found when the launcher is oriented horizontally since the ball will be slowing down when launched vertically. This is due to extra addition of gravity force when launches vertically which always slows downs the vertical speed.So ball must be launched horizontally
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