SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the term for the speed a rocket must reach to overcome the gravity of a planet?
A
escape velocity
B
speed
C
force
D
hyper drive
Explanation: 

Detailed explanation-1: -Escape velocity is the speed at which an object must travel to break free of a planet or moon’s gravitational force and enter orbit.

Detailed explanation-2: -The amount of velocity needed to escape our planets gravity is approx 11km per second, which is known as escape velocity.

Detailed explanation-3: -Escape velocity decreases with altitude and is equal to the square root of 2 (or about 1.414) times the velocity necessary to maintain a circular orbit at the same altitude. At Earth’s surface, if atmospheric resistance could be disregarded, escape velocity would be about 11.2 km (6.96 miles) per second.

Detailed explanation-4: -: the minimum velocity that a moving body (such as a rocket) must have to escape from the gravitational field of a celestial body (such as the earth) and move outward into space.

There is 1 question to complete.