What Is the Angle of Total Acceleration for a Race Car on a Circular Track?

AI Thread Summary
To determine the angle of total acceleration for a race car on a circular track, one must analyze both tangential and centripetal acceleration components. Starting from rest and accelerating at a constant rate, the car's speed increases as it completes one lap. A diagram can help visualize the relationship between the radius, the car's position, and the acceleration vectors. Identifying relevant variables and equations is crucial for solving the problem effectively. This approach fosters a deeper understanding of circular motion and acceleration concepts.
Sesmo
Messages
1
Reaction score
0

Homework Statement



A race car starts from rest on a circular track. The car increases its speed at a constant rate as it goes once around the track. Find the angle that the total acceleration of the car makes--with the radius connecting the center of the track and the car--at the moment the car completes the circle.

Homework Equations



... :(

The Attempt at a Solution



The problem is I don't even know where to start. I'm not looking for a quick answer from you all; I want to know how I should approach this and build some skillz!
 
Physics news on Phys.org
1. Draw a diagram.
2. Identify any variables that might be of interest in the problem.
3. Pencil in on your drawing where the variables "live".
4. List the equations you know that might pertain to quantities you want to manipulate or find.
 
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...
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...
Back
Top