physics

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A crate is given an initial speed of 2.9 up the 29 plane shown in the figure . Assume = 0.13

how far up the plane will it go?

  • physics -

    Normal force = m g cos 29
    friction force = .13 m g cos 29
    call distance along surface headed up = d
    work done against friction = .13 m g d cos 29
    work done against gravity = m g d sin 29
    so
    (1/2) m v^2 = .13 m g d cos 29 + m g d sin 29

    v^2 =2.9^2 = d (.13 cos 29 + sin 29)
    solve for d which is distance sliding up ramp
    if you want the final height it is d sin 29

  • physics -

    Symbols and units must be provided.

    A statement like
    "Assume = 0.13"
    is meaningless by itself.
    Damon has managed to figure out what you probably mean.

  • physics -

    LOL except I left out the 2 from the 1/2

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