A ball is projected from level ground with speed at an angle with . Find the horizontal range. (Take .)
Answer and explanation
Correct answer: B.
- Step 1: Horizontal speed m s, vertical speed m s, time of flight s.
- Step 2: Range m.
Answer
.
Why not the others: is what you get if you use the time to the highest point. is what you get if you assume the maximum range. is what you get if you use the vertical component twice.
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