Question

8. Define the terms: Free fall, acceleration due to gravity, Kinetic energy, Joule and 1kW.​

Answer 1

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Free fall :-

It is defined as the motion of an object where gravity is the only force acting upon it.

Acceleration due to gravity :-

Acceleration due to gravity is the acceleration gained by an object due to gravitational force.

• Its SI unit is m/s2.

• It has both magnitude and direction

Kinetic energy :-

form of energy that an object or a particle has by reason of its motion. Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass.

1 kilowatt (kW) = 1,000.00 joules per second (J/sec)

Answer 2

Answer:

1. Free Fall- Free fall is defined as the motion of an object where is gravity is only force action upto it.
2. Acceleration due to gravity- The acceletation of the body in free fall under the influnce of earths gravity expressed as the rate of incurese of velocity per unit of time and assigned.
3. Kinetic energy -energy which a body possesses of virtue of being in motion.
4. Joule-A mesurment of energy or work.

Explanation:

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