Centripetal acceleration question confirmation please

AI Thread Summary
The centripetal acceleration required to keep a 0.5 kg mass moving at 0.1 m/s in a circular path with a radius of 0.2 m is calculated using the formula a = v^2/r. Substituting the values gives a = 0.1^2/0.2, resulting in an acceleration of 0.05 m/s² directed towards the center of the circle. The calculation appears correct, confirming that the centripetal acceleration is indeed 0.05 m/s². There is some uncertainty expressed about the result, but the math checks out. This confirms the necessary centripetal acceleration for the given parameters.
pinnacleprouk
Messages
26
Reaction score
0

Homework Statement



what is the magnitude and direction of the centripetal acceleration necessary to confine the motion of a 0.5kg mass moving at speed 0.1m/s to a circular path 0.2m in radius


Homework Equations



a = v^2/r



The Attempt at a Solution



0.1^2/0.2 = a

a = 0.05m/s/s towards the centre

Doesn't look right to me

Thanks in advance
 
Physics news on Phys.org
Doesn't sound unreasonable
 

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
What actually is the centripetal acceleration formula?
Replies
28
Views
3K
Gravitation sum related to Centripetal Acceleration
Replies
5
Views
3K
Tangential acceleration and centripetal acceleration
Replies
5
Views
2K
Car turning and centripetal force
Replies
18
Views
2K
Three conceptual questions on centripetal acceleration in a cone
Replies
5
Views
2K
Centripetal Acceleration of Satellite
Replies
7
Views
2K
Circular Motion Questions (energies, forces, angular velocities, etc.)
Replies
2
Views
1K
Difference between radial and centripetal acceleration?
Replies
9
Views
8K
Centripetal acceleration formula
Replies
4
Views
2K

Hot Threads

Recent Insights

Back
Top