Question

By what vertical velocity a piece of stone must be thrown so as it may attain a maximum height of 1000m (g=9.8 m/s square)
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Answer 1

Answer:

Explanation:

We know that,

Maximum height in vertical direction is given by u^2/2g

Therefore u^2/2g = 1000

U = ✓1000×9.8×2

U = ✓19600

U= 140m/sec