You are trying to climb a castle wall so, from the ground, you throw a hook with a rope attached to it at 24.1 m/s at an angle of 65.0° above the horizontal. If it hits the top of the wall at a speed of 16.3 m/s, how high is the wall?

The value is  

Explanation:

From the question we are told that

    The speed of the rope with hook is

     The angle is  

      The speed at which it hits top of the wall is  

Generally from kinematic equation we have that

Here h is the height of the wall so

=>    

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