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When you want the acceleration of the rope (which is the acceleration of the attached mass) then you want to use the radius where the rope attaches.freshbox said:Can I say for such questions to find acceleration, always use the radius that the rope is attaching to?
Not sure what you mean. The angular acceleration is the same at any radius. (Don't confuse angular with linear acceleration.)freshbox said:Why can't i take the wheel radius since the question says "acceleration produced on the wheel" ?
Again, do not confuse angular acceleration of the assembly, which is the same for wheel and axle, with the linear (or tangential) acceleration of some part of the wheel, which depends on the radius at that point.freshbox said:From Equation 3, how come I need to use the axle radius but not the wheel radius, since the question is asking me to find the angular acceleration of the wheel.
Right. Thus to relate the linear acceleration of the rope (and thus the hanging mass) to the angular acceleration, you'll use the radius of the axle.freshbox said:rope is attached to the axle.
The wheel + axle is a single connected assembly. It turns as one unit. (Thus wheel and axle have the same angular acceleration.)freshbox said:Does the wheel turn anticlockwise(because force 50N is pushing) and axle turning clockwise because Box A is pulling it down. Both turning different direction or the Wheel+Axle is turning together?
You really only have one unknown. How are weight and mass related?freshbox said:I have values for Tc, a, after subbing it in I have.
147.945-Wc=Mc(0.13)
I left 2 unknown which I am unable to continue.
Right! Weight = mass X g.freshbox said:Weight = mass x 9.81
mass = Weight / 9.81
Rotational motion is the movement of an object around a fixed point, known as the axis of rotation, in a circular or curved path.
Angular velocity is the rate at which an object rotates around its axis, measured in radians per second (rad/s) or degrees per second (deg/s).
Moment of inertia is a measure of an object's resistance to changes in its rotational motion, calculated based on the object's mass, shape, and distribution of mass.
Torque is a measure of the force that causes rotational motion, calculated by multiplying the force applied to an object by the distance from the axis of rotation.
Rotational motion involves movement around an axis of rotation, while linear motion involves movement in a straight line. Additionally, rotational motion is affected by moments of inertia, while linear motion is affected by mass and momentum.