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## Homework Statement

A ball is thrown from the edge of a 10.0 m high cliff with a speed of 20.0 m/s at an angle of 30 degrees below horizontal. What is the speed of the ball when its hits the ground below the cliff?

Options :

1) 26.3 m/s

2) 28.1 m/s

3) 31.4 m/s

4) 24.4 m/s

5) 29.5 m/s

I am new to the forum so bare with me I don't know how the forum works. I have attempted a solution for the problem. I would appreciate if you could just tell me the equation to work with.

## Homework Equations

This is the equation I tried

v = sqrt(2*g*h)

## The Attempt at a Solution

v = sqrt(2*9.8*10)

v = 14 m/s

The answer is not even in the options. Clearly I am doing something wrong actually way off. May be I am mixing wrong concept here.

I would appreciate explanation with equation.

Thank you.