But what happens when the object is on an inclined surface?

In summary, the angle of an inclined surface affects an object's motion by changing the force of gravity acting on the object. As the angle increases, the force of gravity pulling the object down the incline also increases, causing the object to accelerate and gain speed. However, an object can stay at rest on an inclined surface if the force of gravity is balanced by an equal and opposite force, such as friction. The mass of the object also plays a role in its motion on an inclined surface, as it affects the force of gravity and the amount of friction. Other factors that can affect an object's motion on an inclined surface include external forces, the shape and texture of the object and surface, and the coefficient of friction.
  • #1
frigid
8
0
But what happens when the object is on an inclined surface?

In this particuliar situation a 30kg block with an area of force of 80cm squared is standing on a surface which 30 degrees inclined relative to the floor. How do you calculate the pressure it exerts?
 
Physics news on Phys.org
  • #2
You need to find the component of the force that is normal to the surface where it acts, in order to find the pressure.
 
  • #3
Ok so Fn/Fg = cos(30deg) = 0.866
0.866 * 30kg * 9.8 = 254.6N
254.6 / 0.008m^2 = 3.2 X 10^4

Like this?
 
  • #4
Good work, that's it! :smile:, btw N/m^2 = Pa (Pascal).
 

FAQ: But what happens when the object is on an inclined surface?

1. How does the angle of the inclined surface affect the object's motion?

The angle of the inclined surface affects the object's motion by changing the force of gravity acting on the object. As the angle increases, the component of gravity pulling the object down the incline also increases. This can cause the object to accelerate down the incline.

2. What is the relationship between the angle of the incline and the object's speed?

The relationship between the angle of the incline and the object's speed is determined by the amount of force acting on the object. As the angle of the incline increases, the force of gravity acting on the object also increases, causing the object to accelerate and gain speed.

3. Can an object stay at rest on an inclined surface?

Yes, an object can stay at rest on an inclined surface if the force of gravity pulling the object down the incline is balanced by an equal and opposite force, such as friction. However, if the angle of the incline is too steep, the object may start to slide down due to the force of gravity being greater than the force of friction.

4. How does the mass of the object affect its motion on an inclined surface?

The mass of the object does not directly affect its motion on an inclined surface. However, a heavier object will have a greater force of gravity acting on it, which may cause it to accelerate faster down the incline compared to a lighter object. The mass also affects the amount of friction between the object and the inclined surface, which can impact its motion.

5. What factors besides the angle of the incline can affect the object's motion?

Besides the angle of the incline, other factors that can affect the object's motion include the mass of the object, the force of gravity, the coefficient of friction between the object and the inclined surface, and any external forces acting on the object, such as air resistance. The shape and texture of the object and the surface it is on can also play a role in its motion on an inclined surface.

Similar threads

Block at rest on an inclined surface
2
Replies
36
Views
4K
Push/Pull Force of wheeled cart on an incline
Replies
7
Views
3K
Block and pulley on movable incline
Replies
2
Views
1K
Block on top of an inclined plane, with a rough surface, that moves with constant acceleration
2
Replies
41
Views
1K
Finding the coefficient of kinetic friction on an incline
Replies
3
Views
4K
Acceleration and Tension in a Two-Block System on an Inclined Plane
Replies
8
Views
1K
The minimum inclination of a surface
Replies
6
Views
1K
Having a hard time learning Newton's 2nd law
Replies
5
Views
740
What is the maximum tension and friction force for a block held on an incline?
Replies
19
Views
3K
Static Pulley Problem on an Incline
Replies
9
Views
2K

Hot Threads

Recent Insights

Back
Top