Question 190653
A wheel falls off an airplane and takes 8 s to reach the ground. If there were no air resistance, the wheel's final speed would be: 
a. 9.8 m/s
b. 7 m/s
c. 10 m/s
d. 50 m/s
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v = at = 9.8 * 8
v = 78.4 m/sec