A particle is projected from level ground with speed at an angle where . Find the greatest height reached. (Take .)
Answer and explanation
Correct answer: D.
- Step 1: At the highest point the vertical speed is : .
- Step 2: m.
Answer
.
Why not the others: is what you get if you use instead of . is what you get if you use the horizontal component. is what you get if you use the full speed.
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