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rr96
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Homework Statement
As part of a NASA experiment, golfer Tiger Woods drives a golf ball on the moon, where
g = 1.60 m/s2. He ‘launches’ a golf ball with a speed of 285 km/h, at an angle of 42o with the horizontal. What horizontal distance will his drive travel before landing back on the surface of the moon. Ignore the curvature of the moon.
Homework Equations
d = (Vi)(t) + 1/2(a)t2
Vf =Vi + at
(Vf)2 = (Vi)2 + 2ad
The Attempt at a Solution
Initial horizontal velocity:
285 x cos42
= 211.8 km/h
Initial Vertical Velocity
285 x sin42
= 190.7 km/h
Finding time using vertical components
d = (Vi)(t) + 1/2(a)t2
0 = 190.7t - 4.9t2
t = 38.9 s
Using time to find distance
d = (Vi)(t) + 1/2(a)t2
d = 211.8 x 38.9 + 1/2(0)t2
d = 8239 m
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