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Thread: Physics problem!

  1. #1

    Unsure

    Does anybody know how to do this problem? I really dont know how to even start.

    A block slides down an inclined plane 9m long that makes an angle of 38 degrees with the horizontal. The coefficient of sliding friction is 0.25 If the block starts from rest, find the time required for it to reach the foot of the plane

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    Robert00000's Avatar Interweb Fantasist BT Rep: +1
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    Quote Originally Posted by DawG_M
    Does anybody know how to do this problem? I really dont know how to even start.

    A block slides down an inclined plane 9m long that makes an angle of 38 degrees with the horizontal. The coefficient of sliding friction is 0.25 If the block starts from rest, find the time required for it to reach the foot of the plane
    .........
    Robert00000

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    DarthInsinuate's Avatar Died in battle
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    i think you need to work out the vertical or horizontal component or both and throw in 9.8 somewhere
    The Sexay Half Of ABBA And Max: Freelance Plants

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    TheDave's Avatar n00b
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    you missed anything?

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    thats all the info i got, im thinking that its impossible to do

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    TheDave's Avatar n00b
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    nothing from a previous question?

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    no this is the only problem the teacher gave us

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    ziggyjuarez's Avatar Poster
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    wow
    make me feel dumb.I dont even know 5x6 and thats no joke :<

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    TheDave's Avatar n00b
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    The coefficient of sliding friction is 0.25 If the block starts from rest

    i dont get it. if this is supposed to multiply or something it never moves

    *goes to find what coefficiant means*

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    TheDave's Avatar n00b
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    if 0.25 means metres per second it takes 36 seconds. but it cant be, otherwise it wouldn't state starting from rest. maybe if there was more info i could work out the acceleration.
    Last edited by TheDave; 11-30-2004 at 12:08 AM.

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