Why is my iphone 4 screen not working?

I dropped it from 2 feet and it landed on the bottom where the Speakers are and i caught it not even a second before it hits the ground, when i tried to turn it on the video i was watching stopped and the screen went blank. I know it still works in general because when i turn it on and drag where the slide
is i hear a click, what happened and how can i fix it?

i need to fix it within the next hour.

Maybe its jamed

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