Q 1356301274.     A particle is projected from the surface of earth with an initial speed of `4` `km//s` . Find the maximum height attained by the particle. Radius of earth `=6400` `km` and `g = 9.8` `m//s^2`

A

`1500` `km`

B

`858` `km`

C

`355` `km`

D

`935` `km`

HINT

Decrease in Kinetic energy = increase in gravitational potential energy of particle
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