# I need help with the following Physics' questions [closed]

I need to know which formulas and the step-by-step answers for the following physics questions:

1. You throw a ball upward with an initial speed of 7.0 m/s, and it returns to your hand o.92 seconds later, ( assuming air resistance can be ignored).

• (a) What is the average acceleration vector of the ball?
• (b) Find the highest up ward distance that ball can get.

2. A ball was thrown at an angle of 45.0 degrees above the horizontal, that it traveled a horizontal distance of 496ft, and that it was caught at the same level from which it was thrown.

• (a) What was the ball's initial speed?
• (b) How long was the ball in the air?
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## closed as too localized by Mark Eichenlaub, Qmechanic♦Feb 22 '13 at 21:30

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See FAQ and Meta re homework questions. "If you have a question about a homework problem, or any problem of an educational nature, narrow it down to the specific concept that is giving you trouble and ask about that." – RedGrittyBrick Feb 22 '13 at 21:29
If you are stuck on a question it is best to start it and explain exactly which bit confuses you. If you can't be bothered to start the question yourself, what makes you think other people will be bothered to help you? – Magpie Mar 6 '13 at 11:22