Question

Write short note on Free fall

Answer 1

Answer:

free fall is defined as the motion of an object where gravity is the only force acting upon it. By this definition then, a skydiver is never in true free fall, even before they deploy their parachute. A skydiver may be pulled towards earth by gravity, but they are also affected by air resistance, a force opposing their downward movement. For this reason it doesn’t match the strict definition of a free fall.

Answer 2

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⤇ If a body fall under the gravitational pull of earth only.This type of motion is known as free fall.

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⤇Newton's law of gravitation :- According to this law a force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of distance between the two bodies.

⤇Universal gravitational Constant :- universal gravitational Constant is defined as the force of attraction between two object of unit masses separated by unit distance.

• It is denoted by g.
• It's unit are m/s²
• It change from place to place.