You are playing disk golf and your disk gets caught in a tree branch 7.15 m abov

Question

You are playing disk golf and your disk gets caught in a tree branch 7.15 m above arm level. It is positioned in such a way that in order to retrive it, you need to throw a rock at it. Your rock needs to hit it with a velocity of 10.7 m/s at an angle of 62.5 degrees below the horizontal. You stand a horizontal distance of 12.5 m from the tree and give it a try. Ignore air resistance and use g=9.81 m/s^2. With what velocity must you throw the rock (magnitude and direction) and how long will the rock be in the air?

Explanation / Answer

final velocity V Vx = 4.94 Vy = - 9.49 Ux = 4.94 Uy = 15.17 magnitude of initial velocity = 15.956 m/s angel = 71.96 degrees above horizonta;

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