
Philip P. answered 07/03/15
Tutor
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Effective and Patient Math Tutor
1) distance = rate*time, so distance/rate = time
- distance = 45 m
- rate = 15 m/s
time = (45 m)/(15 m/s) = 3 s
2) height = (1/2)gt2
- g = acceleration due to gravity = 9.8 m/s2
- t = time = 3 s (from problem 1)
h = (1/2)(9.8 m/s2)(3 s)2
h = 4.9*9 = 44.1 m