Calculating Torque: Solving a Bicycle Wheel Problem

  • Thread starter Thread starter leezak
  • Start date Start date
  • Tags Tags
    Torque
AI Thread Summary
To calculate the force required to lift the bicycle wheel off the ground, one must consider the torque generated by the weight of the wheel and the applied horizontal force. The torque due to the weight is calculated by multiplying the radius of the wheel (0.350 m) by the weight (29.0 N). When the applied force F increases to a certain point, it creates enough torque to counteract the torque from the weight, causing the wheel to lift. A diagram illustrating the forces acting on the wheel can aid in visualizing the problem. Ultimately, the goal is to determine the magnitude of force F at the moment the wheel begins to rise.
leezak
Messages
43
Reaction score
0
The figure shows a bicycle wheel resting against a small step whose height is h = 0.110 m. The weight and radius of the wheel are W = 29.0 N and r = 0.350 m. A horizontal force F is applied to the axle of the wheel. As the magnitude of F increases, there comes a time when the wheel just begins to rise up and loses contact with the ground. What is the magnitude of the force when this happens?

i'm not even sure where to start... i figure to find the torque of the wheel i can multiply (.350) times (29) but i don't know i need help please!
 
Physics news on Phys.org
Please try to make a diagram showing all of the forces on the wheel.
 
i did and i still don't know what to do
 
OK, what forces did you get?
 

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 '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

Force on a rotating wheel/disc
Replies
25
Views
2K
Calculating Net Force on a Wheel: Magnitude and Direction | 0.350 m Radius
Replies
4
Views
2K
Write an expression w1 of the angle shown in the first picture
Replies
4
Views
2K
Force exerted on counter-rotating wheels by a tennis ball
Replies
44
Views
6K
Find the torque for a vehicle wheel
Replies
2
Views
1K
2 Masses and a Wheel (with mass)
Replies
6
Views
763
How Do Friction and Force Affect the Angular Velocity of Connected Wheels?
Replies
19
Views
3K
Applying a force in a wheel bicycle
Replies
2
Views
1K
Find Frictional Torque for Poorly Maintained Bicycle
Replies
6
Views
10K
Accelerating a car including the moment of inertia of the wheels
Replies
33
Views
11K

Hot Threads

Recent Insights

Back
Top