Question

What is the minimum escape velocity of rocket to be launched into space?

Q: Answer-What is the minimum escape velocity of rocket to be launched into space?

On the surface of the Earth, the escape velocity is about 11.2 kilometers per second 06.96 mis, which is approximately 34 times the speed of sound Mach 34 and several times the muzzle velocity of a rifle bullet up to 1.7 kms. However, at 9,000 km altitude in space, it is slightly less than 7.1 kms. In physics, escape velocity is the speed at which the kinetic energy plus the gravitational potential energy of an object is zero.