3. A child throws a ball, which hits a vertical wall at a height of 1.3m above the ball's release point. The speed of the ball at impact is 10.2m/s. a What was the initial speed of the ball? b. How much work was done raising the ball up those 1.2m? c. Was any work done in the horizontal direction? Please explain your answer.
3. A child throws a ball, which hits a vertical wall at a height of 1.3m above the ball's release point. The speed of the ball at impact is 10.2m/s. a What was the initial speed of the ball? b. How much work was done raising the ball up those 1.2m? c. Was any work done in the horizontal direction? Please explain your answer.
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Transcribed Image Text:3. A child throws a ball, which hits a vertical wall at a height of 1.3m above the ball's
release point. The speed of the ball at impact is 10.2m/s.
a What was the initial speed of the ball2
b How much work was done raising the ball up those 1.2m?
c. Was any work done in the horizontal direction? Please explain your answer.
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