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course Phy 201
Ball on three ramps
You rolled a ball down three ramps, on supported at its high end by the thickness of a domino, another by the width and another by the length. You observed horizontal range of the ball after it left each ramp, and the time down each ramp.
Insert a copy of your data here, along with any previously submitted work you wish to include:
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Rises or thickness of the dominoes
Trial 1 = 2.1 cm
Trial 2 = 4.2cm
Trial 3 = 5.8cm
Ramp length are all 54 cm
Time interval
Trial 1 = 1.69
Trial 2 = 1.67
Trial 3 = 1.68
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Calculate acceleration for each of the three ramps, based on your times and distance measurements, assuming acceleration to be uniform.
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Acceleration
Trial 1 = 15.2 cm/s^2
Trial 2 = 19.4 cm/s^2
Trial 3 = 19.1 cm/s^2
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Calculate the slope of each ramp.
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Trial 1= . 04
Trial 2 = .08
Trial 3 - .11
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Graph acceleration vs. ramp slope and report the slope of your graph.
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After graphing the accel vs ramp slope graph, I took two random points on the graph. (0.6, 15.3) and ( 1, 19) which will make y= .4/3.7= .11
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University Physics students: Show that the slope of the acceleration vs. ramp slope graph will have very nearly the same slope even if the table has a small but significant slope.
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Self-critique (if necessary):
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Self-critique rating:
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The ramps have very different slopes. The time intervals will differ significantly.
The time intervals you have reported are very nearly the same, and wouldn't make this much difference in the calculated accelerations.
In any case it was the horizontal ranges that should have been observed. Check your data and see if you have that information, then use it as in the last lab to calculate the horizontal velocity of the falling ball, for each slope.
That horizontal velocity will be the ball's final velocity on the ramp. With the initial velocity and the distance down the ramp it should be easy to calculate the accelerations.
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