Recent content by Hn.

  1. H

    [Kinematics] Question involving quadratic equation.

    Answer: (7 + 4.28)/2 = 8.68 s or (7 - 4.28)/2 = 2.09 s Since you stated the initial velocity was 4.28, I'm guessing that: t = (7 \pm 4.28)/2 = (v1 \pm v2)/2 So it is equal to say that: t = 1/2(v1\pmv2) = 1/2(7\pm4.28) The initial velocity is found along the...
  2. H

    [Kinematics] Question involving quadratic equation.

    LowlyPion, you are correct that 7 m/s is a final velocity. However, the equation I used did not require me to find out the Initial Velocity to find the time. BAnders1, thanks for the information.
  3. H

    [Kinematics] Question involving quadratic equation.

    An object accelerates at the rate of 1.30 m/s^2 over a displacement of 11.8m, reaching a final velocity of 7.00 m/s. For what length of time was it accelerating? Explain the answers. NOTE: Actually, when I first was about to post this, I finally had gotten the answer I needed. However, I cannot...