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calculus

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A projectile is shot upward from the surface of the Earth with an initial velocity of 120 meters per second. What is its velocity after 5 seconds?

  • calculus -

    Height = -4.9t^2 + 120t
    d(height)/dt = -9.8t +120

    when t=5
    velocity = -9.8(25)+120 = -120 m/s

  • calculus -

    Height = -4.9t^2 + 120t
    d(height)/dt = -9.8t +120

    when t=5
    velocity = -9.8(25)+120 = -120 m/s

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