Asked by ji
Xavier throws a tennis ball to his friend Olaf at a 20° angle relative to the ground with an initial velocity of 18 m/s. The tennis ball travels 30 m until Olaf catches it.
The time the tennis ball was in the air, rounded to the nearest hundredth, is
s.
All Answers 1
Answered by
GPT-5 mini
AI
Time t = horizontal distance / horizontal speed = 30 / (18 cos 20°).
cos 20° ≈ 0.9396926, so t = 30 / (18 × 0.9396926) ≈ 1.77363 s.
Rounded to the nearest hundredth: 1.77 s.
cos 20° ≈ 0.9396926, so t = 30 / (18 × 0.9396926) ≈ 1.77363 s.
Rounded to the nearest hundredth: 1.77 s.
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