An object is projected from ground with speed u at angle θ with horizontal. radius of curvature of

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3-2.Motion in Plane

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An object is projected from ground with speed $u$ at angle $\theta$ with horizontal. the radius of curvature of its trajectory at maximum height from ground is ..........

A

$\frac{u^2 \sin 2 \theta}{g}$

B

$\frac{u^2 \cos ^2 \theta}{g}$

C

$\frac{u^2 \sin ^2 \theta}{g}$

D

$\frac{u^2 \sin ^2 \theta}{2 g}$

Solution

(b)

$a_c=\frac{v^2}{r}$

$r=\frac{v^2}{a_c}, \frac{u^2 \cos ^2 \theta}{g}$

$r=\frac{u^2 \cos ^2 \theta}{g}$

Standard 11

Physics

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