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March 27, 2017

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A projectile spends a total of 20 seconds in the air. It reaches a peak height of 8 meters. How long does it take to reach it's peak height

  • Physical science - ,

    It spends 10 seconds going up and 10 seconds coming down. You don't need to know the peak height to conclude that.

    The initial vertical velocity component (Vo sinA) could be calculated from the numbers they gave you.

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