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At an airshow, the pilot of a rising plane releases a $7.5\text{ kg}$ sack of flour. At the moment of release, the plane is $870\text{ m}$ above the ground and is moving at $95 \text{ m/s}$. The angle of the plane's rise is unknown. The sack of flour continues to rise and has a speed of $68\text{ m/s}$ when it reaches its highest point.

Ignoring the effect of air resistance, which of the following is the maximum height of the sack of flour above the ground?

A

$1100\text{ m}$

B

$1300\text{ m}$

C

$2700\text{ m}$

D

The angle of the initial velocity of the sack of flour is needed in order to solve this question.

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