Average velocity of a particle is projectile motion between its starting point and the highest point of its trajectory is : (projection speed = $u$, angle of projection from horizontal= $\theta$)
Average velocity of a particle is projectile motion between its starting point and the highest point of its trajectory is : (projection speed = $u$, angle of projection from horizontal= $\theta$)
- A
$u\,\, cos\theta$
- B
$\frac{u}{2}\sqrt {1 + 3{{\cos }^2}\theta } $
- C
$\frac{u}{2}\sqrt {2 + {{\cos }^2}\theta }$
- D
$\frac{u}{2}\sqrt {1 + {{\cos }^2}\theta }$
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