Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Gun Shoots Block Up Incline

  1. Oct 20, 2008 #1
    Gun Shoots Block Up Incline!!

    1. A block of mass m is placed in a smooth-bored spring gun at the bottom of the incline so that it compresses the spring by an amount x. The spring has spring constant . The incline makes an angle (theta) with the horizontal and the coefficient of kinetic friction between the block and the incline is mew. The block is released, exits the muzzle of the gun, and slides up an incline a total distance L.

    2. Energy equations

    3. I keep getting ;

    -- This answer is wrong and i don't understand why, I've worked it like 5 times and always get this answer. Please Help!
    Last edited: Oct 20, 2008
  2. jcsd
  3. Oct 21, 2008 #2


    User Avatar
    Homework Helper

    Re: Gun Shoots Block Up Incline!!

    Hi kleencut,

    Maybe I'm just missing it, but I don't see what the problem is asking for?

    In this last equation, you have an x at the very end of the expression. Can you show how you got that expression and that x?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook