March 29, 2017

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A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the work-kinetic energy theorem and disregarding friction, find the velocity of the crate at the bottom of the ramp

  • Physics - ,

    If there is no friction, the angle of the slope doesnt matter. The mass won't matter either, after you set
    M g H = (1/2) M V^2
    and solve for V.

    H is the vertical distance that it falls. Since you know the length L and the angle,
    H = L sin 14.

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