Physics 2211 w. Dr. Larosa

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    Chapter 4, problem 51

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    Puja

    Posts : 3
    Join date : 2009-08-29

    Chapter 4, problem 51

    Post  Puja on Wed Sep 02, 2009 3:57 pm

    When baseball players throw the ball in from the outfield, they usually allow it to take one bounce before it reaches the infield, on the theory the ball arrives sooner that way. Suppose the angle at which a bounced ball leaves the ground is the same as the angle at which the outfielder threw it but that the ball's speed after the bounce is one half of what it was before the bounce.

    (a) Assuming the ball is always thrown with the same initial speed, at what angle should the fielder throw the ball to make it go the same distance D with one bounce as a ball thrown upward at 45.0° with no bounce ?

    (b) Determine the ratio of the time interval for the one-bounce throw to the flight time for the no-bounce throw.
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    Ryan
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    Posts : 35
    Join date : 2009-08-25
    Age : 107
    Location : Kennesaw

    Re: Chapter 4, problem 51

    Post  Ryan on Fri Sep 11, 2009 3:06 pm

    This problem has really pissed me off. I was expecting something easy, and I can't get the damn answer for the life of me. .... which probably also means that I did #20 wrong (the one about the basketball player dunking)

    I'll try it again from scratch, and post when I get it.
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    Ryan
    Admin

    Posts : 35
    Join date : 2009-08-25
    Age : 107
    Location : Kennesaw

    Muuhhhahahaha hahaha

    Post  Ryan on Tue Sep 15, 2009 1:12 pm

    Totally got it (i think). Just had to redraw my pics.




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