I Review | Constal In your physics lab you release a small glider from rest w at various points on a long, frictionless air track that is inclined at an angle 9 above the horizontal. With an electronic photocell, you measure the time t it takes the V COWGCt glider to slide a distance a; from the release point to the bottom of the track. Your measurements are given in (59%), which shows a second-order polynomial (quadratic) fit to the plotted data. You are asked to find ' Part D the glider s acceleration, which is assumed to be constant. There is some error in each measurement, so instead of using a single set of z and t values, you can be more accurate if you use graphical methods and obtain your measured value of the acceleration from the graPh- Express your answer to two significant figures and include the appropriate units. The glider is released at a distance 1 .31 m from the bottom of the track. Use the acceleration value you obtained in part C to calculate the speed of the glider when it reaches the bottom of the track. Ere 4 a o ? I (s) m 0.9 v = M 4.7 1 s2 0.7 0.6 ()_5 m Previous Answers Muest Answer 0.4 0'3 X Incorrect; Try Again; 5 attempts remaining 0.2 Enter your answer using units of velocity. 0.1 .|'(m) 0.50 l.()() l.50 2.00 2.50 3.00 Provide Feedback Next V Part C Use the straight-line fit from the previous part to calculate the acceleration of the glider. Express your answer to two significant figures and include the appropriate units. E 7.6 CL 82 Previous Answers V Correct