An object placed on a ground is in stable equilibrium. If the object is given a slight push, then initially the position of center of gravity:
A) Moves nearer to ground.
B) Rises higher above the ground.
C) Remains as such.
D) Many remain at level.

Hint: Center of gravity, in physics, an imaginary point in a body of matter where the total weight of the body may be thought to be concentrated for convenience in certain calculations. As the position of any object is changed with respect to gravity the center of gravity also changes.

Complete step by step solution:
The center of gravity is an object's average Weight location. We can fully describe the motion of any object through space in terms of the object's center of gravity being translated from one place to another, and the object's rotation about its center of gravity if it is free to rotate.

An object's center of gravity is calculated by taking the sum of its moments, divided by the object's overall weight. The moment is the weight product and its location as measured from a set point named the origin.
In stable equilibrium, the center of gravity of the object lies, at minimum height from ground. As the object is given a slights push, its center of gravity rises, because it comes in unstable equilibrium.

Hence, option B is the correct answer.

Note: But the body is in constant motion, meaning we often change positions. A new location for the center of gravity enters with each new position. Even minor position changes can change where your center of gravity is also the center of gravity is called the center of mass.