The sputnik one satellite orbiting earth mass equals 5.98×10 to the 24th power kilograms in a circle of radius 6.96×10 to the six power meters what was its orbital velocity

7572 m/s

Explanation:

The force between two masses separated by a distance r is given as:

Where F is the attractive force between 2 masses, m1 and m2, r is the distance between the centres of the masses and G is the universal gravitation constant, which is

The mass of the earth () is far greater than the mass of the sputnik (). Therefore . The mass of the sputnik is neglected, therefore:

But F is actually centripetal acceleration, a = v²/r

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle