Question

8 75° 40° 1. Given the information above: (1 pt) Which cannon ball will move through the air further? a. A b. B c. They will have the same horizontal displacement 、V.-loom, sama initial speed

Answer 1

The maximum horizontal distnace travelled by a projectile is given by v²sin2$\theta$ /g .Therefore, horizontal distance is proportinal to sin2$\theta$

Given $\theta$ for A is 75,sin2$\theta$ = sin 150=0.5

$\theta$ for B is 40, sin 2$\theta$=sin80=0.98

Therefore, Cannon B will move further because 0.98 is greater than 0.5

Correct option is b