- #1

Francis Perez

- 7

- 0

Thread title changed to be more descriptive of the problem.

## Homework Statement

Hello, so I’ve been trying to find some possible way to calculate this:

The initial Velocity and angle needed to launch a projectile and reach the coordinates (x,y). The maximum height the ball can reach before it starts to head down to the target value should be y+5m

The variables are only given by the initial place, being (0,0), the final place, be (X,Y), the mass of the ball, the gravity, maximum height, (Y+5). The time it will take there, I don’t know, it’s not necessary to find the time, just the angle and initial velocity it needs to go, but if we need it I guess we can come up with a formula... X*1.2? I’m not sure.

## Homework Equations

I am assuming these will be used somehow:

Vx = Vi*Cos(Angle)

Vy = Vi*Sin(Angle)

## The Attempt at a Solution

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Please bear with me and my absurd attempt.. I guess we can start with the easy one..

Vy

^{2}= 2*Gravity*(Y+5) right?

We found the Vy needed to reach the maximum height.

Now to find the Vx component the angle it should be shot at, the initial velocity... can we or can we not?

I’m stuck trying to figure this out.. can anyone give me a hand?

Time if needed is the distance from origin, 0 to X multiplied by 1.2. If no time is needed for this then just ignore it.

Correct me if I’m wrong... I’m pretty sure I made more than a bunch of mistakes.

Also excuse me for typos, I’m typing from my phone.