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August 22, 2014

Posted by **veera** on Tuesday, October 11, 2011 at 7:56am.

- Math? Physics?? What? -
**Writeacher**, Tuesday, October 11, 2011 at 7:58amPlease type your

__subject__in the**School Subject**box. Any other words,__including obscure abbreviations__, are likely to delay responses from a teacher who knows that subject well.

- kvb -
**bobpursley**, Tuesday, October 11, 2011 at 8:44amYes.

- physics -
**drwls**, Tuesday, October 11, 2011 at 8:47amAt the midpoint of the trajectory, 60 m from the point the ball is struck, the height of the ball is 80 m.

A point 35 m from Sam is 25 m from the midpoint. For an inverted parabola, distance below the midpoint height varies with the square of the horizontal distance from the midpoint.

The ball height at that point is

80 - (25/60)^2*80 = 80[1 - (5/12)^2]

= 66.1 m

The tree wil be cleared.

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