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Essay Details:
Essay text:
Determine the average time of each set of ten drops.
See data table.
2. Use the average time, height and kinematics equations to determine local gravity.
Small Ball: ?y = vit+(1/2)at2
1.61 = (0*0.573)+(1/2)a(0.5732)
a = 9.81 m/s2
Big Ball: ?y = vit+(1/2)at2
1.61 = (0*0.569)+(1/2)a(0.5692)
a = 9.95 m/s2
3. Calculate the percent error between each calculated local gravity and the accepted value of
gravity, 9.8 m/s2.
Small Ball: [(9.81–9.8)/9.8]*100 = 0.10%
Big Ball: [(9.95-9.8)/9.8]*100 = 1.53%
4. How do the drop times compare between the two different sized balls? Is this consistent with
the concepts learned in class? Explain...
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