What determines the net work on a hockey puck in circular motion?

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The net work done on a hockey puck in circular motion is influenced by its mass, the radius of the circle, and the speed of the puck. The formula for acceleration in circular motion is velocity squared divided by radius. The net force acting on the puck can be calculated using the mass and the velocity squared divided by the radius. Work done is determined by the product of force and displacement, aligning with the Work-Energy theorem. Understanding these relationships is crucial for analyzing the dynamics of the puck's motion.
shenwei1988
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A hockey puck of mass m sits on a frictionless, horizontal table tied to a string of length L. The puck starts at rest, and accelerates to some speed v moving in a horizontal circle of radius L. The net work done on the hockey puck,depend on what? L,m,or r??

i forgot the formula for the circular motion.
 
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acceleration = velocity^2 / radius
net force = mass*velocity^2 / radius
 
Work done is force x displacement.
 
Hint: Consider the Work-Energy theorem.
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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