To find the acceleration of a glider moving down a sloping, Ask an Expert

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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 = 0.210 +/- 0.05m/s
v2 = 0.850 +/- 0.05m/s
t = 8 +/- 1 second
What should you report for the acceleration, a = (v2 *

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