The range of a projectile fired at an angle with the horizontal and with an initial velocity of v0 feet per second is r 1 32 vo2 sin 2 where r is the horizontal distance (in feet) the projectile travels An athlete throws a javelin at 75 feet per second At what angle must the athlete throw the javel...

The range of a projectile fired at an angle with the horizontal and with an initial

Question:

The range of a projectile fired at an angle Θ with the horizontal and with an initial velocity of v0 feet per second is r = 1 / 32 vo2 sin 2 Θ where r is the horizontal distance (in feet) the projectile travels. An athlete throws a javelin at 75 feet per second. At what angle must the athlete throw the javelin so that the javelin travels 130feet?