WAEC - Physics (2017 - No. 12)
The angle at which a projectile must be fired to cover maximum range is
30°
45°
60°
90°
解释
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°