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A car moving with a velocity of 72 KMPH ...

A car moving with a velocity of 72 KMPH stops engine just before ascending an inclined road. If 25% of energy is wasted in overcoming friction, the car rises to a height of `(g=10ms^(-2))`

A

6m

B

7.5 m

C

12 m

D

15 m

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-WORK POWER ENERGY-EXERCISE - 2
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  9. If the kinetic energy of a body ia fourtimes it mementum, its velocity...

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  14. A ball is projected vertically down with an initial velocity from a he...

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  17. A block of mass .m. is connected to one end of a spring of .spring con...

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  18. A car without passengers moving with certain velocity on a level groun...

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  19. A bullet loses 25% of its initial kinetic energy after penetrating thr...

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