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Posted by on Wednesday, February 22, 2012 at 12:12pm.

If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time.

A. 1.9 seconds
B. 2.5 seconds
C. 5.6 seconds
D. 6.7 seconds
E. 7.1 seconds

  • Physics - , Wednesday, February 22, 2012 at 1:31pm

    v = vi - g t
    at top v = 0
    0 = 7.3 - 9.8 t
    t = .745 s to top
    same amount falling back so
    2 * t = 1.49 seconds in the air

    Now that is quite enough. You try some.

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