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An object moves in the +x direction at a speed of 30 m/s. As it passes through the origin, it starts to experience a constant acceleration of 3.7 m/s2 in the -x direction.

(b) How much time elapses before the object returns to the origin?


  • Physics -

    this is like a projectile problem turned sideways

    0 = -(.5 * 3.7 * t^2) + (30 * t)

    solve the quadratic for t (you want the non-zero solution)

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