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The velocity of an aeroplane is made twi...

The velocity of an aeroplane is made twice (a) What will happen to the momentum? Will the momentum remain conserved? (b) What will happen to the K.E.? Will the energy remain conserved ?

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SL ARORA-Work, Energy and power-EXERCISE
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  10. Explain how work done by a variable force may be measured.

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  14. Figrue shows the F-x graph. Where F is the force applied x is the dist...

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  15. Calculate work done in moving the object from x=2 to x=3m from the gr...

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  16. The momentum of a body of masss of 5kg is 500kg ms^(-1). Find the its...

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  17. A bullet of mass 20g is found is found to pass two points 30cm apart i...

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  18. A body of mass 2kg is resting on rough horizontal surface. A force 20N...

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