Recent content by gazeem

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    Is Gravity the only force doing work on a roller coaster cart?

    Yes that makes sense, thank you. I was thrown off a bit by an explanation they gave that " In a vertical loop, there are 2 forces acting on the object: the normal force and gravity," but that is probably speaking generally and not comprehensively about this situation such that there must be some...
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    Is Gravity the only force doing work on a roller coaster cart?

    Oh I apologize, that's my bad I meant to refer to B) that it's accelerating.
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    Is Gravity the only force doing work on a roller coaster cart?

    Actually.. on second thought, perhaps normal force is in the same direction as the direction of motion, if you consider the direction of the displacement vector to be the direction of motion, and you break that vector into its vertical and horizontal components. So gravity and normal force would...
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    Is Gravity the only force doing work on a roller coaster cart?

    Why I think gravity *is* the only force doing work on the rider: 1) The only forces acting on the rider are gravity and the normal force. Broken down into their component vectors, we have: -> The component of the force of gravity moving parallel to the rider's direction of motion -> The normal...
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    Understand Pressure in Fluids: Conceptual Guide

    I'm looking for a conceptual understanding of pressure in fluid. According to what I've gathered, in static fluid, the pressure at any point in the fluid depends on the depth within the fluid, because there is more fluid weighing down on an object the deeper into the fluid it is. However, for...
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    Does the mass of an object affect its inertia?

    After thinking about A some more, I think I have a better understanding: If a car is turning, the force that is acting on the car to make it turn is not acting on the driver. Considering the force is, let's pretend 100N on the car, that would cause a reasonable amount of change in direction in...
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    Does the mass of an object affect its inertia?

    I know what the answer is supposed to be, but I don't understand why. Here is my logic as to why I thought a few of these suggestions should be the right answer. "C) Mass is a measure of an object’s ability to resist motion or movement of any kind." Considering F = ma, and that mass is...
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    B Why doesn't the gravity vector contribute to KE sliding down a ramp?

    Ah okay I see. Thank you both so much for your responses, makes more sense now.
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