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Is the work done by non conservative fo...

Is the work done by non conservative force is always negative ? Discuss .

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No. If the body does not move even if a force acting on the body ,then work is zero due to frictional force and reason for motion is friction and work done due to the friction force is positive .
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KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - C Objective Questions (VSQs)
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  3. If two bodies experience collision when they are moving opposite to e...

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  4. It work done positive or negative for stretched spring ?

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  5. What happens in a eleastic collision of two identical bodies moving op...

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  6. Write the condition for conservative forces .

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  7. Is the work done by non conservative force is always negative ? Discu...

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  8. What is head -on collision ?

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  9. At which position (point) pendulum of a clock have maximum speed ?

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  10. If mechanical work done on the body then kinetic energy increases or d...

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  11. If E - V lt 0 ,then this position is possible ?

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  12. Write the types of collision . (a) Collision between negative charge...

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  13. When arrow is released from bow , then from which source arrow get kin...

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  14. When the maximum energy during elastic collision will be exchanged ?

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  15. By which number the elastic collision if the body be measured ?

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  16. Why fractional force is a non - conservative force ?

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  17. Which physical quantityis conserved in elastic as well as inelastic co...

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  18. What is an angle between two equal bodies of same mass one of them is ...

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  19. "1 kWh is a unit of power " . This statement is true or false ? If it ...

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  20. If bulb of 100 W continued for 10 hour then how much electric energy w...

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