Recent content by maddief

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    Projectile motion rock off a cliff

    Homework Statement A rock is thrown down off a cliff at 18 m/s at an angle of 17 below the horizontal. If the rock hits a cliff that is 16m away, how far down did the rock fall. Homework Equations Vf= Vi + at change in Y= Vit + .5at^2 The Attempt at a Solution I tried solving for...
  2. M

    What is the Height at Which a Falling Ball Reaches a Velocity of 5.2 m/s?

    Thank you! It worked!
  3. M

    What is the Height at Which a Falling Ball Reaches a Velocity of 5.2 m/s?

    Homework Statement A ball falls from rest from an initial height of 5m above the ground. At what height above ground level will the ball be moving at 5.2 m/s?Homework Equations gravitational energy = mgh kenetic energy=(1/2)mv^2The Attempt at a Solution I tried solving for both types of energy...