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Homework Help: Projectile Motion

  1. Oct 26, 2008 #1
    1. The problem statement, all variables and given/known data

    A golfer wishes to chip a shot into a hole 60 m away on flat level ground. If the ball sails off at 50°, what speed must it have initially? Ignore aerodynamic effects.

    2. Relevant equations

    xf = xi + vxi(t)
    vx = vi(cos)angle

    3. The attempt at a solution

    How would I plug this in>
  2. jcsd
  3. Oct 26, 2008 #2


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    Homework Helper

    Into what???

    You need one more equation. One that describes the vertical direction.
  4. Oct 26, 2008 #3
    yf = yi + vyit + (1/2)at^2

  5. Oct 26, 2008 #4


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    Homework Helper

    Yes, that one will work.
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