Question

Prove the work energy theorem with diagram​

Answer 1

Answer:

this is work energy therom with constant force and variable force

Answer 2

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

after time (T)

|←---------Distance (d)---→|

$\implies$V² = U² + 2as ( s =Distance)

$\implies$V² = U² + 2ad ---( eq 1 )

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

$\implies$mv² = mu² + 2 m×ad

$\implies$mv² - mu² = 2m×ad

$\implies$mv² - mu² = 2 F×d (m×a = force)

$\implies$½mv² +½ mu² = F×d

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

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