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physics

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A 20 kg mass is allowed to accelerate down a frictionless 15° ramp.
a. Determine the value of the x-component of the force gravity.
b. What is the acceleration of the block down the ramp.
c. How long will it take for the block to slide 30.0m?

  • physics - ,

    a) zero. Gravity acts downward. That is usually called the y direction. The Force component DOWN the ramp is
    M g sin 15.
    What are they calling the x direction?
    b) a = g sin15 = 2.54 m/s^2
    c) t = sqrt(2L/a) = 4.86 s

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