SirLancelotDuLac
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
They prolly should have said sleeve tbh.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Lmao, I thought too until I saw the solution.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
It can move along the rod.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Now try to visualize a line from origin cutting both these circles at some point. Rotate this line in your mind and look at how the points move.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Here, blue is the locus of the pin and red is the locus of the end of the rod.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Find geometrically the distance O'B. It won't come out to be 2R
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Angle subtended by arc at center is twice of that at circumference.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
But the pin can move along O'A right?
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
It will come out to be different from 2R
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Let the angle PO'O be alpha then the value of POR is 2 alpha. So find the height of P from OO' and hence find the length OP.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
It absolutely would be.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
The rod is rotating with constant omega right? But the direction of the velocity at point P is expected to be perpendicular to O'P, which is not perpendicular to OP. So consider the component along OP and perpendicular to OP. The component along OP vanishes because of the normal force.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
When the pin is at O' , O'P=0. Similarly when pin is at B, O'P=2R.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Okay. Consider for a moment ki the circular slot is a completely circular one. Now Let O'B be the diameter of the circular slot.
89 replies
IiTeachChem
•Created by Percy on 4/22/2025 in #💭│doubts
Circular Motion
Hence it is not a circular motion about O'.
89 replies