i need help with this question. I don\'t think I did itright! A ball is thrown s

Question

i need help with this question. I don't think I did itright!    A ball is thrown straight up at an initialspeed of 9.8 m/s and, on returning to your hand, hits it movingdownward at that same speed. If the whole trip took 2.0 s,determine: a) the balls average acceleration b) and the average velocity Thank You! i need help with this question. I don't think I did itright!    A ball is thrown straight up at an initialspeed of 9.8 m/s and, on returning to your hand, hits it movingdownward at that same speed. If the whole trip took 2.0 s,determine: a) the balls average acceleration b) and the average velocity Thank You!

Explanation / Answer

a. The average acceleration a=(g+(-g))/2=0 b. The avg velocity v=(-9.8+9.8)/2=0 This we get by taking the directions of as. Hence we get by it.

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