What demonstrates the universal law of gravity?

Answer 1

The orbits of the planets around the sun is a good example. The planets are constantly circling the sun. Black holes are probably the most massive and awesome example of gravity. They cannot be seen, but the way stars and light move around black holes, we know that they are there. The Swarz Child Radius is the radial distance where light can't escape from a black hole. It is the perimeter surrounding a black hole and if anything including light goes inside that perimeter, it will be sucked in by the black holes gravity.

Answer 2

determine the gravitational force between a 60kg and a 70 kg person who are both standing 2.0 m apart.

Fg=GM1M2

r^2

g=6.67x10^-11

M1=^0 kg

M2=70 kg

R= 2 m

.

just substitute..

Answer 3

The sun and planets, calculate the force between the sun and each planet

then see if its mass, orbital velocity and orbital radius produce the centripetal force required to balance it.

f = (G * sun mass * planet mass) / radius2

.

Note:

G = newtons gravitational constant (6.673 * 10-11)

Masses in kg

radius in metres

Answer 4

Examples of the law of universal gravitation is; An apple falling off from a tree, a stone falling off a building.

Answer 5

Your first fall when you learn to walk.