If initial velocity of projectile is doubled then which is correct?
Correct answer: D. D
- A. A
- B. B
- C. C
- D. D
Explanation
The formula for time is = 2 ( vi sin θ )/g T is directly proportional to Vi and hence doubling it will give double time.The formula for vertical height is = vi^2 x sin^2 θ /2g Vertical height is directly proportional to Vi^2 and hence doubling it will give 4 times height.Range of flight is= vi^2 x sin*2 θ /g Range is directly proportional to Vi^2 and hence doubling it will give 4 times rangeHence, D is the correct one .
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