To use the understanding of projectile motion to predict the impact point of a ball on an inclined board.
Equipment Used:
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| Carbon paper |
a set point up the inclined portion of the ramp. It is important to have the ball released at a set point, since the horizontal velocity is going to be used to determine when the ball will impact the inclined board.
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| Ramp to roll aluminum ball down |
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| Aluminum ball to roll down |
Data Collected:
The data that was collected was the horizontal distance the ball traveled once the ball was sent down the ramp. The height that it fell was measured as well so the time it took for the ball to travel the distance was calculated and then the horizontal velocity of the ball was calculated.
Then the board was placed and the angle the board made with floor was recorded.
Calculations:
Conclusion:
The calculated value for the distance for the ball to impact the board was 74.7cm but the experimental value was 71cm which is very close. The percent error was only 5.21% and considering all of the variables that could affect the calculations that is very close. There could have been an error in the angle calculated for the board, or it could have shifted between measurements, the ball might have been released from a different position than initially released. Despite this, the calculation is reliable and appears to be an accurate method of prediction.
Sincerely,
Swaggy C
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