If a particle is fired vertically upward from the surface of earth and reaches a heightof 6400km the initial velocity of particle: 1) 4km/s 2)2km/s 3)8km/s 4)16km/s

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Q. A particle is fired vertically upwards from the surface of Earth and reaches a height

6400 K m

. The initial velocity of the particle, if

R = 6400 K m

and of at the surface of Earth is

10 m / s^{2}

A particle is fired vertically upward from earth's surface and it goes up to a maximum height of 6400 km. Find the initial speed of particle.

Q. A particle is fired vertically upwards with a speed of

9.8 k m / s

. Find the maximum height attained by the particle. Radius of earth =

6400 k m

and

g

at the surface =

9.8 {m / s}^{2}

. Consider only earth’s gravitation.

A particle is fired vertically upward with a speed of 9.8 km/s. Find the maximum height attained by the particle. Radius of earth = 6400 km and g at the surface = 9.8m/s $^{2}$ . Consider only earth's gravitation.

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^{- 1}

from the surface of earth. Calculate its velocity at height 3R, where R is the radius of earth.

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