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Finding max. distance and time (projectile motion)

  1. Nov 14, 2015 #1
    1. The problem statement, all variables and given/known data
    John plans to drive a car off of one ramp and land on a similar opposing ramp. The ramps are slanted at 30 degrees. His car leaves one ramp at a speed of 30m/s.

    a) What is the maximum distance between the ramps for the stunt to succeed?
    b) How much time does the car spend in the between ramps?

    2. Relevant equations


    3. The attempt at a solution
    My attempt at the solution is shown below. Can anyone verify my work and see if I am on the right track? Note: I did question b) first because I needed that time value for a). Thanks. All help is very much appreciated!
     

    Attached Files:

  2. jcsd
  3. Nov 14, 2015 #2

    SteamKing

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    The distance between ramps will not be measured in m/s.
     
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