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We use Newton's gravitational constant (G) in finding the acceleration due to gravity of the earth (g). The average value of g is 9.8 m/s2 (it is s square). g is basically the acceleration produced in a freely falling body. For example, if you jump from an airplane in the sky, in 1 second your speed will be 9.8 m/s, in 2 seconds your speed will be 19.6 m/s (9.8 x 2) and so on.
We also use the gravitational constant G to find the gravitational force between 2 bodies. Every object in this universe attracts the objects around it with a force. Even I must be attracting you right now at this moment. But our masses are so less that we do not feel this force of attraction. However, for heavier bodies like planets and stars, we feel this force and call it gravity. The more the mass of a body, the more gravity it has.
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What is gravity's number?
42...actually its G=newtons gravitational constant =6.674*10^-11 m^3 kg^-1 s^-2 and is concerned with gravitational attraction calculations.
Who measured the gravitational constant G?
Cavendish measured the gravitational constant "G".
Why did Einstein have to find a gravitational constant?
The gravitational constant was found by Newton, not Einstein.
What is the gravitational force of 7 kg mass exerts on 4 kg mass?
The gravitational force between masses depends on the distance between them. > The force (and reaction) can be calculated from: : f (newtons) = (G * 7 * 4) / d2 where: G = newtons gravitational constant ( 6.672 * 10 -11) d = distance between centres of gravity in metres > Example: a distance of 0.1 metres between the masses would exert a force of on each mass of 1.868 * 10 -7 newtons
When was g the earth's gravitational constant calculated?
g, the force of the Earth's gravitational attraction, is not a constant.
