Kamini live with her 10 years old daughter Mohini in a Arya
Samaj Society. These is a well maintained society park.
Mohini was swinging on a swing in her society park. She
wanted to increase the speed of the swing. For that she
started pushing the ground backward harder with her feet.
When her swing was at its lowest position during its
oscillation. She enjoyed it but did not show the actual
mechanism. Her mother told her the actual mechanism of
gaining speed in a swing.
(a) What values were displayed by Kamini?
(b) Specify which energy is maximum and which is
minimum when Mohini's swing was at its lowest
position?
c
Define energy. What is its SI unit?
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Answer:
Ability to be very active or do a lot of work without getting tired is called energy
joule(J) is a SI unit of energy
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