Recent content by arrax

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    What Is the Normal Force on a Rollercoaster Car at the Top of a Hill?

    aside from a possible wrong sign, did you get a different number?
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    What Is the Normal Force on a Rollercoaster Car at the Top of a Hill?

    Homework Statement A roller-coaster car has a mass of 1150 kg when fully loaded with passengers. As the car passes over the top of a circular hill of radius 16 m, its speed is not changing. (a) At the top of the hill, what is the normal force (using the negative sign for the downward...
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    Block moving around in a semi cricle

    The other is the M block acting on the small block, and So gravity does act on the small block so I do end up using tan25 deg = a/g I think because of the force of the big block acting on the small block on the x axis.
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    Block moving around in a semi cricle

    Homework Statement A cylinder is cut out of a large block with mass M=4kg sitting on a table. A small block of negligible size and mass m=0.5kg is placed within the hole. All the surfaces are frictionless. The radius of the cut is R=0.80m and the angle is 25 degrees. Basically there's a...