Question

Derivation of work energy theorem for a constant force

Answer 1

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Answer 2

Answer:

Explanation:

According to this theorm the change in kinetic energy of an object is equal to the work done by the object

⚽➡️U ----------------→ ⚽➡️V

after time (T)

|←---------Distance (d)---→|

V² = U² + 2as ( s =Distance)

V² = U² + 2ad ---( eq 1 )

Multiply eq (1) with 'm' on both side

mv² = mu² + 2 m*ad

mv² - mu² = 2m*ad

mv² - mu² = 2 F*d ( m*a = force )

½mv² +½ mu² = F*d

Kinetic energy final - Kinetic energy initial = Work (W)

W =∆K energy