A body of mass $m$ is projected from ground with speed $u$ at an angle $\theta$ with horizontal. The power delivered by gravity to it at half of maximum height from ground is
A body of mass $m$ is projected from ground with speed $u$ at an angle $\theta$ with horizontal. The power delivered by gravity to it at half of maximum height from ground is
- A
$\frac{m g u \cos \theta}{\sqrt{2}}$
- B
$\frac{m g u \sin \theta}{\sqrt{2}}$
- C
$\frac{m g u \cos (90+\theta)}{\sqrt{2}}$
- D
Both $(b)$ and $(c)$
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