October 7, 2015

Homework Help: Physics

Posted by Anonymous on Saturday, August 25, 2012 at 8:30pm.

Standing on the top ledge of a 55 m high building you throw a ball straight up with an initial speed of 45 m/s. How long to the nearest second, does it take to hit the ground?

I got 10 seconds for the first question.

How do I go about answering this one?

If the building in the previous problem is 48 meters high and you throw the ball up at 30 m/s, how high to the nearest meter does it go?

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