An asteroid is moving directly towards the centre of the earth. When at a distance of 4R (R is the radius of the earth) from the earths centre, it has a speed of `2sqrt2` km/s. Neglecting the effect of earths atmosphere, what will be the speed of the asteroid when it hits the surface of the earth (escape velocity from the earth is 11.2 km/s)? Give your answer to the nearest integer in kilometer/s _________.

[" An asteroid is moving directly "],[" towards the centre of the earth."],[" When at a distance of "10R" ( "R" is the "],[" radius of the earth) from the earths "],[" centre,it has a speed of "12km/s" ."],[" Neglecting the effect of earths "],[" atmosphere,what will be the speed "],[" of the asteroid when it hits the "],[" surface of the earth (escape velocity "],[" from the earth is "11.2km/s" ).Give "],[" your answer to the nearest integer in "],[km/s" ................"]

An asteroid, headed directly toward Earth, has a speed of 12 km/s relative to the planet when the asteroid is 10 Earth radii from Earth's center. Neglecting the effects of Earth's atmosphere on the asteroid, find the asteroid's speed v_f when it reaches Earth's surface.

The escape speed for an object from the earth is 11.2 km/s . What is meant by escape speed?

The mass of the moon is 7//81 th of earth 's mass and its radius is 1//4 th that of the earth if the escape velocity from the earth surface is 11.2 kms^(-1) its value for the moon will be

The mass of the earth is 9 times that of the mars. The radius of the earth twice that of the mars. The escape velocity of the earth is 12km//s . The escape velocity on the mars is ........ km//s

Find the temeprature at which the r.m.s. velocity is equal to the escape velocity from the surface of the earth for hydrogen. Escape velocity = 11.2 km//s

A body mass 'm' is dropped from height R/2 , from earth's surface, where 'R' is the radius of earth. Its speed when it will hit the earth's surface is ( v_e = escape velocity from earth's surface)