Gravity

No, the friction of a wagon moving down a hill is typically kinetic friction. Static friction occurs when an object is at rest and there is no motion relative to the surface.

That's "speed".

1. Falling objects require gravity in order to accelerate towards the Earth's surface.
2. The formation and maintenance of planetary orbits rely on gravity to keep celestial bodies in motion around a central object.
3. Fluids, such as water in oceans and rivers, depend on gravity to create pressure differentials and flow in specific directions.

The force of gravity is stronger between larger masses, and weaker

between smaller masses.

That's why there's more force between you and the Earth than there is

between you and a bowling ball, for example.

Weight is the force exerted on an object due to gravity. It is a measure of the gravitational pull on an object, determining how heavy or light it feels. Gravity influences an object's weight on Earth, but weight can vary depending on the strength of the gravitational field where the object is situated.

There is a force of gravity between every pair of masses. So any object

with mass is attracted to every other object with mass.

centre of mass is nothing the mass (volume) situated at centre which is not at all use full for pt of control.

but centre of gravity is that pt at which we can hold the total mass or body .

Under an assumption of constant gravity, Newton's law of universal gravitation simplifies to F = mg, where m is the mass of the body and g is a constant vector with an average magnitude of 9.81 m/s2. The acceleration due to gravity is equal to this g. An initially stationary object which is allowed to fall freely under gravity drops a distance which is proportional to the square of the elapsed time. The image on the right, spanning half a second, was captured with a stroboscopic flash at 20 flashes per second. During the first 1�20 of a second the ball drops one unit of distance (here, a unit is about 12 mm); by 2�20 it has dropped at total of 4 units; by 3�20, 9 units and so on.

G force stands for Gravity force, 3G is 3 times gravity, it's the effect of motion, at about 7g the average person faints, it is important on rollercoasters because of you have to many g's then the participants of the ride will either faint or throw up.
g forces aint nothing because you cant learn shoot off of it Shoal Creek 704

Earth's gravity attracts every object because of its mass. Gravity is a force that pulls objects toward each other, and the larger an object's mass, the greater its gravitational pull. So, Earth's mass is what creates the gravitational force that attracts everything towards it.

There is a pair of gravitational forces between every two masses in Creation.

The two that influence the Earth the most are the Sun and the Moon. But the forces

of gravity are also significant between Earth and Venus, and between Earth and Mars.

If you know the distance then you use the equation

d = x0 + v0t = 1/2 at2

if the object starts from rest then v0 = 0

If the object starts at zero distance the x0 = 0

d = 1/2 at2

Squareroot(2d/a) = t

Weight

1). Write down the information you're given, such as position, time, speed, etc.

2). Write down the things you know that describe the general relationships among

positions, speeds, times, and accelerations.

3). Use the quantities you're given, together with the general rules you know, to find

the acceleration.

On Earth, that is about 980.

No, acceleration due to gravity is a constant at 9.81ms-2. It cannot be influenced by other factors such as height.

Definition for center of gravity is the point where weight of the object balance in all direction. Finding the CG for any irregular shape or regular shape whether it is a rod or rock is all the same. You may hang the object at different angle, note the rope line drawn across the object. There will be only one cross over point of all the hanging line in all direction. That point is the CG of such object.

yes

The law of gravity states that objects with mass attract each other. This force of attraction causes objects to be pulled towards each other, resulting in phenomena like objects falling to the ground and planetary motion. It is responsible for keeping planets in orbit around the sun and holding our feet on the ground.

Weight = mass * gravity

The factors influencing acceleration due to gravity are the mass of the object and the distance from the center of the Earth. Objects with more mass experience a stronger gravitational force, which leads to a higher acceleration due to gravity. Additionally, the acceleration due to gravity decreases as the distance between the object and the center of the Earth increases.

You can't shut gravity off or insulate yourself against it, so the only way to fight it

is to use a force in the opposite direction that's greater than the force of gravity.

This is most often accomplished through the use of devices known as "muscles".

A few examples of the process include walking up stairs, lifting a book up from a

table, and throwing a basketball in a ballistic trajectory, precisely calculated so as

to intersect with the center of the hoop some time after gravity regains control.

I just want to add something here. There are several ways to oppose gravity. You know Hydrogen is the lightest element known to humans and it is so light that it can escape gravity and rise up. So, that property is intrinsic to that of Hydrogen. Now, in experimental cases you can oppose gravity through magnetism. When you bring two similar poles of magnets close together they will repel each other. Now place one magnet over another and they would repel one another and float. You have to do this experiment in a systematic manner.

Gravity is not generated.

There are two main explanations of gravity, either general relativity, or an explanation which uses quantum mechanics.

According to general relativity, gravity alteres spacetime. This causes a spacetime curvature, which is responsible for the fact that masses atracct one another.

According to the other theory, it is the result of the exchanges of virtual gravitons.

Since gravitons have not been observed yet, most physicists accept general relativity as the explanation. Other theories exist, but not enough evidence has been gathered so far.

Gravitation, or gravity, is one of the four fundamental interactions of nature, along with strong interaction, electromagnetic force and weak interaction and it is the means by which objects with mass attract one another. You see gravity at work any time you drop a book, step on a scale or toss a ball up into the air. It's such a constant presence in our lives, we seldom marvel at the mystery of it but even with several well-received theories out there attempting to explain why a book falls to the ground, they're still just theories. The mystery of gravity's pull is pretty much intact.

Isaac Newton identified gravity to explain why objects fall towards the Earth and to describe the motion of planets in the solar system. His law of universal gravitation stated that every object attracts every other object with a force proportional to their masses and inversely proportional to the square of the distance between them.