To find the acceleration of a glider moving down a sloping air track, you measure its velocities (v1 and v2) at two points and the time t it takes between them, as follows: v1=0.21+/- 0.05m/s, v2=0.85 +/- 0.05m/s, t=8.0 +/- 0.1sa) assuming all uncertainties are independent and random, find the average acceleration, a=(v2-v1)/t , and its uncertainty. b) how well does your result in part (a) agree with your friends theoretical prediction that a=0.13 +/- 0.01m/s^2.
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