Question

what are free fall,acceleratio due to gravity,escape velocity and centripetial force​

Answer 1

Answer:

Gravity of earth attracts every object towards its center. When an object is dropped from a certain height, it begins to fall towards Earth€™s surface under the influence of gravitational force. Such a motion of object is called free fall.

the acceleration of a body in free fall under the influence of the earth's gravity expressed as the rate of increase of velocity per unit of time with the value 980.665 centimeters per second per second —abbreviation g. Comments on acceleration of gravity.

Escape speed is the minimum speed with which a mass should be projected from the Earth's surface in order to escape Earth's gravitation field. Escape speed, also known as escape velocity is defined as: ... ve is the escape speed. G is the universal gravitational constant (G≅6.67×10-11 m3kg-1s-2)

Centripetal force is defined as, "the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation," while centrifugal force is defined as "the apparent force that is felt by an object moving in a curved path that acts outwardly away from the center of rotation," according to Merriam Webster Dictionary.