Multiple Choice
Projectiles: A boy throws a rock with an initial velocity of 
at 30.0° above the horizontal. If air resistance is negligible, how long does it take for the rock to reach the maximum height of its trajectory?
A) 0.110 s
B) 0.194 s
C) 0.215 s
D) 0.303 s
Correct Answer:
Verified
Correct Answer:
Verified
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