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A particle is fired vertically upward with a speed of 15km/s. Find the speed of the particle when it goes out of the gravitational pull of earth.

A particle is fired vertically upward with a speed of 15km/s. Find the speed of the particle when it goes out of the gravitational pull of earth.

Grade:11

1 Answers

KIRANDEEP DHALIWAL
4 Points
9 years ago

 

ARNAB,

escape speed of particle(u)=15km/s

speed of particle out of gravitational field,i.e., orbital speed(v)=sqrt of 2*u

                                                                              =1.41*15

                                                                               =21.15km/s.

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