# Physics

posted by .

An object rests on an inclined surface thanks to the presence of static friction forces between the object and the surface.
The magnitude of the friction force that prevents the object from sliding is found to be 30 N.
Now, the angle that the surface makes with respect to the horizontal is increased, and the object is found to be still at rest.
The magnitude of the friction force that prevents the object from sliding is now ...

choices:
a) zero
b) larger than zero but smaller than 30 N
c) Equal to 30 N
d) Larger than 30 N

My ans: I think it should be greter than 30N so B

## Similar Questions

1. ### Physics (simple stuff)

. Does the force of friction depend on the area of the sliding surface?
2. ### physics

An object slides down a inclined surface in the presence of kinetic friction forces. At the given inclination the kinetic friction force is found to be of magnitude 90 N. Now, the angle that the surface makes with respect to the horizontal …
3. ### Physics

An object rests on an inclined surface thanks to the presence of static friction forces between the object and the surface. The magnitude of the friction force that prevents the object from sliding is found to be 30 N. Now, the angle …
4. ### Physics

An object slides down a inclined surface in the presence of kinetic friction forces. At the given inclination the kinetic friction force is found to be of magnitude 90 N. Now, the angle that the surface makes with respect to the horizontal …
5. ### science

Words to use: Accelerate - Sliding - Brake - Friction - Slipping - Inertia Velocity - Wheel - Strength - Static - Terminal velocity Questions 1. An object will ____?
6. ### physics - i need A.S.A.P

An object of mass 1.5 kg is placed on a rough horizontal surface, as shown in Figure 1. Force F acts on the object. When the magnitude of F is 10 N, the object just begins to slide. Determine the coefficient of static friction between …
7. ### physic

A stationary 2.0 kg object is located on a table near the surface of the earth. The coefficient static friction between the surface is .80 and the coefficient of the kinetic friction is 0.65. A horizontal force of 5N is applied to …
8. ### physic

A stationary 2.0 kg object is located on a table near the surface of the earth. The coefficient static friction between the surface is .80 and the coefficient of the kinetic friction is 0.65. A horizontal force of 5N is applied to …
9. ### Physics

An object is sliding along a flat surface with an initial speed of 30 m/s. What must the coefficient of kinetic friction be between the object and the surface if the object slides to a stop in 10m?
10. ### Physics

A 100-kg object rests on a level surface with a coefficient of friction (both kinetic and static) of 0.40. If the initial velocity is 15m/s and the object comes to rest, (a) how much friction is acting on the object?

More Similar Questions