physics lab 3 questions

physics lab 3 questions - In this investigation, we studied...

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In this investigation, we studied the motion of a projectile and investigated the hypothesis that horizontal motion is independent of vertical velocity. We measured the initial velocities of a ball, shooting it at a short and a long range setting. Measurements were taken of the horizontal and vertical distances traveled by the ball. By comparing a the projectile motion of a theoretical ball shot at 30 degrees to the recorded values of a ball shot at this angle, we were able to show that factors such as air resistance make the actual ball perform differently than would be calculated. The ball actually traveled an average of 1.812 meters, whereas our predicted range was an average of 1.914 meters (average of part 1 and part 2 calculated range). Although the predicted value did not agree exactly with the actual range, the experiment did show that a calculated value can be used as a pretty accurate guide to predict where a projectile will drop and the time it will take to do so. Overall, the experiment does support the widely accepted principles that projectile motion can be predicted and that it can be broken into horizontal and vertical components. The time-of-flights for Part 1 did not change with initial velocity. The short range average time was 0.459 +/- 0.001 seconds, compared to the medium range flight time of . 458 +/- 0.001 seconds.
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physics lab 3 questions - In this investigation, we studied...

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