A projectile is launched in air with certain angle; its velocity is maximum at:
- A. Point of projection
- B. Highest point
- C. Between launching and highest point
- D. At all points
Explanation
The vertical component decreases as the projectile rises and is regained on the way down, so the speed is greatest at launch and again on landing at the same height, and least at the top where only the horizontal component remains. Neglecting air resistance, the landing speed equals the launch speed. This follows directly from energy conservation, since the kinetic energy is greatest where the height is least.
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