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hello,i'm having some trouble with this problem.
a block with mass m,rests on a frictionless plane,inclined at angle alpha relative to the horizon.
what is the acceleration 'a' of the plane,if we don't want the block to slide down the plane?
here's what I've tried:
the x-axis will be parallel to the plane,so
x axis:
mgsin(/alpha) = macos(alpha)
==>a= g tan(alpha)
Is this o.k?
because it looks weird,if I don't want the block to slide,why am I "saying" in the equation it does?
or maybe because it's relative to an inertial frame?
thanks
a block with mass m,rests on a frictionless plane,inclined at angle alpha relative to the horizon.
what is the acceleration 'a' of the plane,if we don't want the block to slide down the plane?
here's what I've tried:
the x-axis will be parallel to the plane,so
x axis:
mgsin(/alpha) = macos(alpha)
==>a= g tan(alpha)
Is this o.k?
because it looks weird,if I don't want the block to slide,why am I "saying" in the equation it does?
or maybe because it's relative to an inertial frame?
thanks
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