0
Why gravitational constant is constant while when acceleration due to gravity is change?
Wiki User
∙ 11y ago
gravity of earth is constant in any plane but the acceleration may vary becoz of irregular plane
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What effect of gravitational acceleration on Gravitational constant G?
The gravitational constant, G (big G), is a physical constant that doesn't change at all. The magnitude of gravitational acceleration, g (little g), has no effect on G.Little g is used as an approximation for near-surface gravity of a planet (or other large mass). The reason it is used is because the formula for universal gravity and Newton's second law:F = G (mplanet*mobject)/(r3) -- r is the distance between the centers of massF = mobject*aobjectyields (when set equal and dividing out the mass of the object): aobject = G (mplanet)/r3As you can see, the acceleration due to gravity won't change much for distances near the planet's surface. We call the above magnitude, g. Each planet has its own g and Earth's is about 9.8 m/s2.
For a car moving around a circular track at a constant speed the acceleration is?
constant speed=0 acceleration Acceleration is the change in speed. If the speed doesn't change(ie constant) the acceleration is zero.
Why is the mass of an object same on the moon as it is on earth but the weight is different?
Mass is the amount of matter in an object. It does not change based on gravity. Weight is the force an object exerts 'downward' due to gravitational acceleration. Force = (mass)*(acceleration). Acceleration due to gravity is less on the Moon than on Earth.
How are constant speed and constant acceleration different?
There is a huge difference between constant speed and constant acceleration. Constant speed is when the object is travelling constant, no change in its velocity and acceleration or in other words no extra force to speed up. Constant acceleration when the object is acceleration constant, it means that the speed of the object is change at the same rate each second. The acceleration rate at which the object is travelling is constant. for example, when a car is stationary at a traffic light and it starts acceleration, picking up speed but the rate of acceleration will not constant because the amount of force applied differs each second due to the acceleration rate.
What is the formula used to calculate the weight of an object if you are given the mass in kilograms?
Mass is a property of matter and is therefore a constant. Weight however can change, it is the force exerted by that mass in a gravity field. Thus in different gravity fields a constant mass will weigh differently. Weight = Mass * the acceleration of gravity.
Are there any variables that can change acceleration due to gravity?
In a word, no. At least not that we know of. We're still stuck at the bottom of this gravity well, and we have only limited tools that we can use to get out. None of those tools alter the gravitational constant one bit.
What effect of gravitational acceleration on Gravitational constant G?
The gravitational constant, G (big G), is a physical constant that doesn't change at all. The magnitude of gravitational acceleration, g (little g), has no effect on G.Little g is used as an approximation for near-surface gravity of a planet (or other large mass). The reason it is used is because the formula for universal gravity and Newton's second law:F = G (mplanet*mobject)/(r3) -- r is the distance between the centers of massF = mobject*aobjectyields (when set equal and dividing out the mass of the object): aobject = G (mplanet)/r3As you can see, the acceleration due to gravity won't change much for distances near the planet's surface. We call the above magnitude, g. Each planet has its own g and Earth's is about 9.8 m/s2.
Why is the ball deccelerating on an inclined plane?
The acceleration due to gravity remains constant, regardless of incline. The fact that it is on an incline does not change the fact that it will remain constant, it will only change the component of that acceleration being applied to the ball.
What is the difference between constant speed and constant acceleration?
Constant speed means that speed doesn't change. Constant acceleration means that acceleration doesn't change. (If the acceleration is anything but zero, speed WILL change.)
If an object is moving at a constant velocity what do you know about its acceleration?
"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.
What is gravitational accelleration?
gravitational acceleration is the acceleration due to the force of gravity (your weight). Newton's second law is F = ma, as this can be rewritten for Weight (the gravitational force) as W = mg where g is the gravitational acceleration. On Earth g = 9.81 m/s/s. If you traveled to a different planet it would change as the force of gravity would be different thus the gravitational acceleration would be different (on the moon it is 1.6 m/s/s on mars 4 m/s/s on Jupiter 25 m/s/s)
Is the speed of gravity a constant?
It is believed that any change in the gravitational field (caused by movement of masses) would propagate at the speed of light. And yes, that would be a constant.
Is mass x gravity equal to an objects acceleration?
Well, first let's look at what gravity is. If we consider "gravity" as gravitational force, then force=mass x acceleration, and mass x gravity does NOT equal acceleration. Acceleration is the change of velocity, so an object could accelerate without being affected by gravity, maybe just another force, like jet engines or something. Basically, no.
What variables affect gravity?
It helps to look at the formula for gravitational attraction. The force of gravity between two objects depends on:* The gravitational constant (which doesn't change) * The mass of the one object * The mass of the other object * The distance between them
Is it possible for an object weight to change while its mass remain constant?
Yes. Weight is the product of mass times gravitational acceleration. So all you have to do is vary the gravitational field and you vary weight. This is why astronauts on the Moon only weighed about 1/6 their weight on Earth.
Can an object traveling at constant velocity have acceleration why?
If a velocity or speed is constant there isn't an acceleration. This is because the acceleration is the change in speed or velocity and if it's constant then there sn't a change.
For a car moving around a circular track at a constant speed the acceleration is?
constant speed=0 acceleration Acceleration is the change in speed. If the speed doesn't change(ie constant) the acceleration is zero.
