What is meant by universal gravitational constant?
Simply so, what is the value of G?
Additionally, how do you find the universal gravitational constant? According to Newton's law of gravitation, F = G M 1 M 2 d 2 , where F is the gravitational force between two point masses, M1 and M2; d is the distance between M1 and M2; G is the universal gravitational constant, usually taken as 6.670 × 1011 m3/(kg)(s2) or 6.670 × 10−8 in centimeter–gram–second units.
Also to know is, what does 9.81 mean?
It means, for acceleration of 9.81 (m/s^2), the velocity will increase by 9.81 meter/sec. It means, if you let a body fall freely (on earth), then this is the rate at which it will gain in speed towards the ground. It's called the acceleration due to gravity.
What is the SI unit of G?
g =Gravity of Earth. S.I Unit of g is m/sec -Metre per second. If in newton it is N/Kg -newton per kilogrammes..