Question

the value of escape velocity is:

Answer 1

the answer of the question is (b)

Answer 2

Answer:

The escape velocity is √(2GM/R).

Explanation:

• We can define Escape velocity by saying that it is the speed at which any object or body travels or required to break away from the gravity of a planet or moon and escape without developing propulsion.

• The escape velocity equation is calculated by equating the kinetic energy of an object with mass m and moving at a velocity of v with the gravitational potential energy of the same object.

• The escape velocity is denoted by Vc.

• G stands for the gravitational constant which is universal.

• M represents the mass of the heavenly object whose gravitational attraction must be overcome.

• R denotes the distance between the item and the centre of mass of the body to be escaped.

• This relationship implies that escape velocities for larger planets (or celestial bodies) are greater because they have a larger mass than smaller planets with a lower mass or we can say that having less gravity in comparison.

Hence we can say the escape velocity is √(2GM/R).

#SPJ2