a) projectile motion

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6 Terms

1
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  • ball one is dropped vertically, ball two is thrown horizontally

  • state why ball one and ball two fall to the ground at the same rate (same distance + same time)

  • the vertical component and the horizontal component of ball two are independent

  • the horizontal velocity does not affect the vertical velocity

  • ball one and ball two have the same vertical velocity

2
New cards

  • state the velocity and the acceleration of the vertical component and the horizontal component of a projectile

  • the vertical component

    • changing velocity

    • constant acceleration

  • the horizontal component

    • constant velocity

    • zero acceleration

3
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  • explain why the horizontal component of a projectile has a constant velocity and zero acceleration

  • the vertical component of acceleration = Xms^-2

  • the horizontal component of acceleration = 0ms^-2

    • Fx = F × cos(x)

    • Fx = Xms^-2 × cos(90) = 0ms^-2

4
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  • explain why a projectile forms a parabola when it is in motion

  • the vertical velocity is increasing while the horizontal velocity is constant

5
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  • define the actual velocity of a projectile

  • the net velocity including both the vertical velocity and the horizontal velocity

6
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  • state how to calculate the actual velocity of a projectile

  • using the Pythagorean theorem

  • actual velocity^2 = vertical velocity^2 + horizontal velocity^2