HI TO ALL, THIS IS SAIRA, I AM NEW HERE. I AM REALLY WORRIED AS I HAVE A PHYSICS ASSIGNMENT AND I AM REALLY STRUGGLING BECAUSE I MISSED ALOT OF LESSONS BECAUSE I WAS ILL. COULD SOME1 PLZ HELP ME WITH THESE PROBLEMS, I WILL BE EVER SO GRATEFUL!!!!! 1. A boy throws a stone from the edge of a cliff with an initial speed V o at an angle of 30 degrees above the horizontal. When it hits the surface of a lake 22m below the top of the cliff, the stone is moving with a speed of 25 meter per second. What was its initial velocity?