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PHYSICS 131 #2

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a jetliner, traveling northward,is landing with a speed of 69m/s.once the plane touches down, it has a 750m runway in which speed is reduce to 6.1m/s. compute the avgerage acceleration (magnitude and direction) of the plane during landing.

  • PHYSICS 131 #2 -

    vf^2=vi^2+2ad

    solve for a

  • PHYSICS 131 #2 -

    -.042

  • PHYSICS 131 #2 -

    v^2=u^2 +2as
    V=6.1
    U=69
    A=?
    S=750
    6.1^2=69^2 + 2 (a) (750)
    37.21=4761+1500 a
    37.21-4761/1500=a
    a=-3.1m/s^2
    ^(raised to the power of or exponential)

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