2. Five measurements of acceleration due to gravity are shown in Fig. 2. dropped through Find the average gravitational acceleration g and uncertainty (Eq. 7). the photogate. 3. Consider an inclined plane that has a height change Ah of 14.6 ± 0.3 cm and the track length D = 1.1 m. a) What is the acceleration (Eq. 3) of a frictionless cart sliding down the track, and its uncertainty? b) How long will it take for a cart to travel the entire track length, starting from rest at the top? Summary Trial g (m/s) o, (m/s³) 9.754 0.001 9.921 0.003 3. 9.826 0.002 4. 9.489 0.004 You will measure the acceleration of gravity in three ways: by timing a 5 dropped ball with a stopwatch, by timing a plastic strip with a photogate timer, and by using a cart on an inclined plane (Fig. 3). 9.703 0.003 Figure 2. Five measurements of g. Thee

2. Five measurements of acceleration due to gravity are shown in Fig. 2. dropped through Find the average gravitational acceleration g and uncertainty (Eq. 7). the photogate. 3. Consider an inclined plane that has a height change Ah of 14.6 ± 0.3 cm and the track length D = 1.1 m. a) What is the acceleration (Eq. 3) of a frictionless cart sliding down the track, and its uncertainty? b) How long will it take for a cart to travel the entire track length, starting from rest at the top? Summary Trial g (m/s) o, (m/s³) 9.754 0.001 9.921 0.003 3. 9.826 0.002 4. 9.489 0.004 You will measure the acceleration of gravity in three ways: by timing a 5 dropped ball with a stopwatch, by timing a plastic strip with a photogate timer, and by using a cart on an inclined plane (Fig. 3). 9.703 0.003 Figure 2. Five measurements of g. Thee