# Physics

posted by .

a) What is the total force of friction on a wagon’s wheels if it takes 30 N to move it at a constant speed across a bumpy path?

b) Where on a bicycle do you want to reduce friction? How is this done?

c What is meant by the coefficient of kinetic friction?

## Similar Questions

1. ### Physics

A child sits in a wagon with a pile of 0.60 kg rocks. If she can throw each rock with a speed of 10 m/s relative to the ground, causing the wagon to move, how many rocks must she throw per minute to maintain a constant average speed …
2. ### physics

A wagon is used to help deliver papers. There is a force applied at an angle of 25 degrees to the horizontal that causes the wagon to move a distance of 15m[N] in 10.0s from rest. There is a force of friction of 3.1 N acting on the …
3. ### physics

A bicycle has wheels of radius 0.3 m. Each wheel has a rotational inertia of 0.088 kg× m2 about its axle. The total mass of the bicycle including the wheels and the rider is 79 kg. When coasting at constant speed, what fraction of …
4. ### Physics

a) What is the total force of friction on a wagon’s wheels if it takes 30 N to move it at a constant speed across a bumpy path?
5. ### physics

a wagon is pulled at a constant speed at an angle of 46 dregress with a force of 100N. ehat is the force of friction between the wagon and the ground ?
6. ### Physics

A bicycle has wheels of radius 0.32 m. Each wheel has a roatational inertia of 0.080 kg•m^2 about its axle. The total mass of the bicycle including the wheels and the rider is 79 kg. When coasting at constant speed, what fraction …
7. ### college physics

if a girl pulls on a 15 kg wagon with a constant horizontal force of 35N.Her friend pushes on the wagon in the same direction with a constant horizontal force of 10 N. and there is a friction force of 15 N. I need to draw a diagram …
8. ### Science

Ms. Sue please help. 8. Which would best reduce the amount of energy needed to pull a wagon up a ramp?
9. ### physics

A bicyclist is pedaling along a road that is sloped upward with angle theta. At which of these road elevation angles must the bicycle wheels exert the greatest force back on the road to move the bicycle forward at the same constant …
10. ### samoana high school

phoebe physics pulls a wagon with a force of 80 N. a) what is the net force of friction between the wagon and the ground is 12 N. b) if she uses 80 N to pull the wagon through a med puddle, and the net force on the wagon is 38 N, what …

More Similar Questions