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A ball whoes K.E is K is projected at an...

A ball whoes K.E is K is projected at an angle 45° to the horizental.The K.E of the ball at the hightest point of flight is

A

K

B

`k/sqrt2`

C

k/2

D

Zero

Text Solution

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The correct Answer is:
C
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BINA LIBRARY-WORK,ENERGY AND POWER-EXERCISE
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  2. If the momentum of a body increases by 50%,its K.E,increases by

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  10. A ball dropped from a height og h.If the co-efficient of restitution b...

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  11. A ball of mass m moving with a constant velocity strikes against a ba...

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  12. Two particle of masses 1 g and 4g are moving with equal K.E. What is t...

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  13. A body of mass m is moved to a height to equal to the radius of earth....

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  14. The momentum of a body is doubled. Its K.E will

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  15. A wound spring has

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  16. The unit of energy is

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  17. If a force F is applied on a body and it moves with a velocity V ,the ...

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  18. If m is the mass and E the K.E of a body then its linear momenta is

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  19. The power of awater pump is 2 kw.If g=10ms^-1 the amount of water it c...

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  20. The P.E of a string when stretched by 2 cm is U.Its P.E when stretched...

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