Respuesta :

The practical domain of time is t ∈ [0, 4.25s].

  • The set of values that make feel in a particular context is referred to as the sensible area.
  • All feasible solutions are addressed by way of theoretical domains and stages.
  • domain names and stages restrict the solution sets such that they may be realistic in the parameters given
  • .The ball begins its motion at time t = 0s.
  • To locate the time while the ball hits the floor,
  • we solve the equation:
  • h(t) = -16t² + 68t
  • h(t) = 0
  • -16t² + 68t = 0
  • t(-16t + 68) = 0
  • t = 0 and -16t + 68 = 0.
  • 16t = 68
  • t = 68/16
  • t = 4.25
  • h(t) is non-negative within the interval [0, 4.25].
  • Hence, the practical domain is 0 ≤ t ≤ 4.25 s.

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