A projectile is thrown with an initial velocity of (a hat{ i }+b hat{ j }) ms ^{-1} . If range of pr

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3-2.Motion in Plane

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A projectile is thrown with an initial velocity of $(a \hat{ i }+b \hat{ j }) ms ^{-1}$. If the range of the projectile is twice the maximum height reached by it, then

A

$a=2 b$

B

$b=a$

C

$b=2 a$

D

$b=4 a$

Solution

(c)

$R=2 H \text { or } \frac{2 u_x u_y}{g}=\frac{2 u_y^2}{2 g}$

$\text { or }$ $2 u_x=y \quad$ or $\quad 2 a=b$

Standard 11

Physics

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