The angle at which a projectile must be fired to cover maximum range is

PHYSICS
WAEC 2017

The angle at which a projectile must be fired to cover maximum range is

  • A. 30°
  • B. 45°
  • C. 60°
  • D. 90°

Correct Answer: B. 45°

Explanation

The formula is \(\frac{v^{2}sin2\theta}{g}\)

And the sine graph is highest at 1 with its inverse as 90°. Hence, \(2\theta\) = 90°

\(\theta\) = 45°



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