In a fixed triangle inclined plane, an object is stationary on the inclined plane, the mass of the object is m, and the elevation angle of the inclined plane is a. how to calculate the supporting force and friction force of the object? Use sin and COS to calculate

In a fixed triangle inclined plane, an object is stationary on the inclined plane, the mass of the object is m, and the elevation angle of the inclined plane is a. how to calculate the supporting force and friction force of the object? Use sin and COS to calculate

There are three forces on an object
The gravity mg is vertical and downward;
The supporting force n of the inclined plane is perpendicular to the object, and the inclined plane is inclined upward;
The static friction force F of the inclined plane is inclined upward along the inclined plane
Force balance in vertical inclined plane: n = mgcosa
Force balance along inclined plane: F = mgsina

Physics expert, please come in. I have a question about stress analysis
I have a question like this. For example, when an object accelerates to slide on an inclined plane of 30 degrees, does the component force of gravity on the inclined plane refer to the friction force on the object? Why does the friction force on the object sometimes add the component force of gravity to the external force on the object
Friction is the component of gravity on the inclined plane, or I remember something wrong when I analyze the force on the object

Friction and the component of gravity on an inclined plane are two different things
If the slope is rough, the friction along the slope opposite to the direction of motion needs to be considered. If the slope is smooth, it does not need to be considered
If G, N and F are balanced, then n = gcosa and F = gsina

What do u, V, f mean in physical imaging?

U object distance V image distance f lens focal length

What does e = MC2 mean?

The mass energy equation is used to express the energy produced by the complete annihilation of a unit mass of matter after it is quantized

What is the formula of (M / M + m) * mg and how to deduce it?

E = RMG = (GMM) / R what is your r? G (m * m) / (R * r) = mg g = (GM) / (R * r) so your formula is wrong. F = GMM / (R * r) can be proved by Stokes formula

E = energy, M = mass, C = speed of light~

Energy is equal to mass times the square of the speed of light

What's the meaning of Mg with g = mg in physics
What does it stand for

m. Object mass: G, acceleration of gravity (generally 9.8kg/s2 on the earth, for the convenience of middle school physics calculation, take 10 in many test questions, the unit is as above, kilogram does not have second square)
MG is the gravity of an object. For example, the gravity of a 2.5kg object (on the earth) is about g = mg = 2.5 * 10 = 25N
I hope it will help you

How to explain Einstein's equation E (energy) is equal to the square of M (mass) times C (speed of light)?
Can you explain it like a story? Thank you~~

If you want to derive this, you must first accept two hypotheses of special relativity: 1. The velocity of spherical light emitted by any light source is isotropic in all inertial reference frames, and it is always C 2. The physical laws in all inertial reference frames are the same

What is the physical meaning of G in the physical expression g = mg?

Local acceleration of gravity

Speed of light contradicts Einstein's law?
According to Einstein's law, when an object moves at the speed of light, time will be stationary, then when light moves at the speed of light, time will be stationary, but the speed of light in vacuum is a certain value, that is to say, time is still walking when light moves, that is, Einstein's law is wrong. Is that right?
I didn't look at Einstein's things carefully, so I asked Einstein at the same time, is this the explanation for objects moving at the speed of light?
Who is the observer?

Your logic seems to be very correct, but there is one thing that you don't grasp the essence of the theory of relativity. In the theory of relativity, your time is different from mine, and there is even no way to compare them. Fortunately, the effect is very small, and it doesn't have enough influence on our daily life