Help IN UNIFORM CIRCULAR MOTION

AI Thread Summary
In a conical pendulum scenario with a 1kg mass and a 1-meter cord at a 30-degree angle to the vertical, the tension in the cord can be calculated by analyzing the forces acting on the mass. The tension has both vertical and horizontal components; the vertical component balances the weight of the mass, while the horizontal component provides the necessary centripetal force for circular motion. To find the period of the motion, one can use the relationship between the radius of the circular path and the gravitational force. The speed of the mass can be determined using the radius and the period. A free body diagram is recommended for better visualization of the forces involved.
Equilibrium
Messages
81
Reaction score
0
A 1kg mass is attached to a cord 1 meter long and made to move as a conical pendulum. If the cord makes 30 degrees with the vertical, find a.) the tension in the cord; b.) the period of the motion and c.) the speed of the mass...
 
Physics news on Phys.org
did you try the question?

try drawing a free body diagram. it may help.
 
UCM.jpg
 
Last edited:
the diagram's kind of small. well, think about it this way: there are two forces acting on the ball- the tension and the weight. Now, is the ball moving up or down? since it isn't, you can break the tension into components and set the vertical one equal to the gravity.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
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...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Acceleration in uniform circular motion is uniform or non-uniform?
2
Replies
55
Views
3K
Vertical circular motion
Replies
8
Views
2K
A Car on a Banked Curve Moving in Uniform Circular Motion
Replies
7
Views
3K
Is Vertical Circular Motion Ever Uniform?
Replies
10
Views
3K
Circular Motion Homework: Tension & Min. Speed
Replies
1
Views
1K
What is the Speed at the Bottom of a Vertical Circle?
Replies
9
Views
2K
Find the acceleration in circular motion
Replies
6
Views
2K
Uniform Circular Motion - distance
Replies
2
Views
2K
Is Centripetal Acceleration Constant in Uniform Circular Motion?
Replies
38
Views
3K
Uniform Circular Motion Inside a Sphere of Charge
Replies
7
Views
3K

Hot Threads

Recent Insights

Back
Top