dont really understand it and i need some help please

Question

If a projectile is fired with velocity v₀ at an angle θ, then its range, the horizontal distance it travels (in feet), is modeled by the function

R(θ) = 

v02 sin 2θ

32

.

If

v₀ = 2200 ft/s,

what angle (in degrees) should be chosen for the projectile to hit a target on the ground 4000 ft away? (Enter your answers as a comma-separated list. Round your answers to three decimal places.)
θ =

°

 

Answer 1

Step 1:

The projectile is fired with velocity and at angle .

The equation is .

Here, Velocity is and .

Find the angle .

Substitute and in the equation and simplify.

Solution :

The projectile to hit a target on the ground away at the angle .