Question

What will be the effect on horizontal range of a projectile when its initial velocity is doubled, keeping the angle of projection identical?

Answer 1

Answer:

New range will be 4R.  

Explanation:

R = ${v^{2} sin(2\alpha )} /g$

Since range is directly proportional to v², if v doubles, R will increase by 4 times or the new range will be 4R.

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