j7ade6allemar j7ade6allemar
  • 23-11-2016
  • Physics
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A projectile is fired straight upward at 173 m/s. how fast is it moving at the instant it reaches the top of its trajectory?

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AL2006
AL2006 AL2006
  • 23-11-2016
The top of the trajectory is the point where it changes from rising to falling. At that exact instant, its vertical speed is zero.
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