Maximum height attained by a projectile is increased by 10,% by increasing its speed of projection,

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3-2.Motion in Plane

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The maximum height attained by a projectile is increased by $10\,\%$ by increasing its speed of projection, without changing the angle of projection. The percentage increases in the horizontal range will be $...........\,\%$

A

$20$

B

$15$

C

$10$

D

$5$

Solution

(c)

$H$ and $R$ both are proportional to $u^2$. Hence, percentage increases in horizontal range would also be $10\,\%$.

Standard 11

Physics

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