b What are ,(i) free fall
, (iiy acceleration
due to gravity (jj), escape velocity (iv)
centripetal force ?
Answers
Explanation:
i)Free fall -A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. ... Free-falling objects do not encounter air resistance.
ii)Acceration due to gravity-The acceleration which is gained by an object because of gravitational force is called its acceleration due to gravity.
iii) Escape Velocity - Escape velocity is the speed at which an object must travel to break free of a planet or moon's gravitational force and enter orbit.
iv) Centripital force-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
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Answer:
Free fall : A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall.
Free fall : free-falling object is an object that is falling under the sole influence of gravity. A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth). ... The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s.
Escape velocity : the lowest velocity which a body must have in order to escape the gravitational attraction of a particular planet or other object.
Centripetal force : a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving.
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