How is gravity used today?

Answer 1

Well I can give you one example of the use of gravity. A roller coaster, a mechanical winch pulls the cars up to a high spot and then gravity takes you on the rest of your ride.

Your question is a little vague message me and we can clarify on this.

Answer 2

Earths gravity affects life by making sure all people do not float into space where if we have no life support we will die.People make things like gravity-powered motors.

Answer 3

Every planetary body, including the Earth, is surrounded by its own gravitational field, which exerts an attractive force on all objects. Assuming a spherically symmetrical planet (a reasonable approximation), the strength of this field at any given point is proportional to the planetary body's mass and inversely proportional to the square of the distance from the centre of the body.

The strength of the gravitational field is numerically equal to the acceleration of objects under its influence, and its value at the Earth's surface, denoted g, is approximately 9.8 m/s². This means that, ignoring air resistance, an object falling freely near the earth's surface increases in speed by 9.8 m/s (32 ft/s or 22 mi/h) for each second of its descent. Thus, an object starting from rest will attain a speed of 9.8 m/s (32 ft/s) after one second, 19.6 m/s (64 ft/s) after two seconds, and so on. According to Newton's 3rd Law, the Earth itself experiences an equal and opposite force to that acting on the falling object, meaning that the Earth also accelerates towards the object. However, because the mass of the Earth is huge, the acceleration of the Earth by this same force is negligible, when measured relative to the system's center of mass.

Answer 4

yes. you were about a half inch taller when you got out of bed. plus you weighed less. __________________ We can all be grateful that gravity keeps us all down to earth.

Answer 5

Gravity is the key LIFE ! O <----- THIS IS EARTH