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Steel Sphere Acrylic Sphere Length of Track (cm) A (s) 80 cm 80 cm (Step 1, use 80 cm) Angle of Elevation () B in
Steel Sphere Acrylic Sphere Length of Track (cm) A (s) 80 cm 80 cm (Step 1, use 80 cm) Angle of Elevation () B in Degrees " 9 9 (Step 1) Calculated Time from 8.8 C $=0 to s=80 11.5 (formula from step 2) Measured Time from 9.21 7.35 D $=0 to s=80 (step ] with stopwatch) Difference (step 4) E
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