Is Acceleration Directly Proportional to the Square of Time in Kinematics?

AI Thread Summary
The discussion revolves around the relationship between acceleration and time in kinematics, specifically whether acceleration is directly proportional to the square of time. The participant is grappling with the correct mathematical expression for this relationship. They initially suggest that acceleration could be represented as a = C / t^2 but later correct themselves to a = C * t^2. This indicates a misunderstanding of the proportionality concept in the context of kinematics. Clarifying the correct formula is essential for accurately solving related physics problems.
General_Sax
Messages
445
Reaction score
0

Homework Statement



The acceleration of a particle is directly proportional to the square of the time t...

Homework Equations


C = constant


The Attempt at a Solution




I'm just having a little difficutly with the wording.

In this case could I write: a = C / t^2 ?
 
Physics news on Phys.org
oops, I meant this: In this case could I write: a = C * t^2
 

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

Temperature & Gas: Correct or Incorrect?
Replies
12
Views
1K
Non-constant acceleration, solving for velocity
Replies
11
Views
2K
Initial Position Discrepancy Involving Fluid Resistance
Replies
5
Views
2K
Kinematics problems: Displacement in Moon & Proportionality
Replies
1
Views
2K
Find the function of velocity of a person that accelerates to a constant v
Replies
3
Views
1K
Finding Initial Velocity v0x for Particle with Non-Constant Acceleration
Replies
2
Views
4K
Confused about kinematic equations
Replies
20
Views
2K
What is the magnitude of acceleration?
Replies
6
Views
2K
MIT OCW 8.01 PS10.6: A Massive Pulley and a Block on an Incline
Replies
5
Views
981
Calculating τ by knowing I is proportional to A^2
Replies
8
Views
2K

Hot Threads

Recent Insights

Back
Top