Question

can any one give me all the formulas in ch- work and energy to learn coz i have exam tmrw !!!!!

Answer 1

1 The formula for work is force × displacement.... 2. The formula for potential energy is mgh where m is mass , g is gravity , and h is height....... The formula for kinetic energy is 1/2 m v square...... where m is mass and v is velocity...

Answer 2

Work done = force × displacement  , W = F s

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Potential energy = mgh   , m = Mass of the object   , h =  displacement (height) ,  g =  acceleration due to gravity.

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Kinetic energy = 1/2 m v² ,  m = Mass of the object , v = velocity of the object.

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Potential energy + Kinetic energy = constant.

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Power = work/time  , P = W/t

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 1 W = 1 J s-1

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1 kW h = 3.6 × 10⁶ J

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