# an airplane is diving at a speed of 300 km/h and the angle betweent he plane's dive path and the vertical is 50 degrees. The plane launches a rocket which lands at 750m horizontally from beneath the launch point. a) find the flight time of the rocket and b) how high was the release point?

I would need to convert the 300 km/h into m/s to match the 750m but i don't know the equations i should use.

Take the horizontal velocity of the plane as the horizontal velocity of the rocket (odd rocket))(VcosTheta).

Take the initial vertical veloicty of the rocket as the same as the vertical velocity of the plane (VsinTheta)

vertical
h= VSinTheta*time +1/2 g time^2
horizontal
distance=VcosTheta*time

solve for time in the second equation, put it in the first equation.

## To solve this problem, you can use the equations of projectile motion. Let's break it down step by step:

a) To find the flight time of the rocket, we first need to find its horizontal velocity. Since the rocket is launched horizontally from beneath the plane, we can assume that its horizontal velocity is the same as the plane's velocity.

Given that the plane's speed is 300 km/h, we first convert it to m/s by multiplying it by (1000 m/1 km) and dividing by (3600 s/1 h). This gives us a speed of 83.33 m/s.

The horizontal component of velocity for the rocket is then given by Vcos(θ), where V is the speed and θ is the angle between the plane's dive path and the vertical. Substituting the values, we have: horizontal velocity = 83.33 m/s * cos(50°).

Next, we use the equation distance = velocity * time to find the flight time of the rocket. We know that the distance traveled horizontally by the rocket is 750 m. Plugging in the values, we have:

750 m = (83.33 m/s * cos(50°)) * time.

Solving for time, we divide both sides by (83.33 m/s * cos(50°)):

time = 750 m / (83.33 m/s * cos(50°)).
Calculate this value to find the flight time of the rocket.

b) To find the height of the release point, we can use the vertical component of the rocket's motion. The equation for the vertical displacement of an object under constant acceleration is given by:

vertical displacement = initial vertical velocity * time + 0.5 * acceleration * time^2.

In this case, the initial vertical velocity of the rocket is the same as the vertical velocity of the plane, which can be calculated using Vsin(θ), where V is the speed.

The acceleration acting on the rocket is the acceleration due to gravity, which is approximately 9.8 m/s^2. The time is the same as the flight time calculated in part a.

Substituting the values into the equation, we have:

vertical displacement = (83.33 m/s * sin(50°)) * time + 0.5 * 9.8 m/s^2 * time^2.

Solve this equation to find the height of the release point.

By following these steps, you can find both the flight time of the rocket and the height of the release point.