GENERAL HISTOLOGY

INTRODUCTION

CELL ORGANELLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the center of gravity?
A
v
B
Earth
C
Sun
D
Entire Universe
Explanation: 

Detailed explanation-1: -The centre of gravity is a point in an object where the distribution of weight is equal in all directions, and it does depend on the gravitational field. However, an object’s centre of mass and centre of gravity lies at the same point in a uniform gravitational field.

Detailed explanation-2: -What is Center of Gravity (CG)? The center of gravity (CG) location is the average location of all the weight of an object. The center of gravity is the balance point of an object, also expressed as the point where all the mass appears to be located.

Detailed explanation-3: -Centre of mass is the point at which the distribution of mass is equal in all directions and does not depend on gravitational field. Centre of gravity is the point at which the distribution of weight is equal in all directions and it does depend on gravitational field.

Detailed explanation-4: -Under gravity, acceleration is 9.8 m/s² and is denoted by g. When an object is falling freely under gravity, then the above equations would be adjusted as follows: v = u + gt.

Detailed explanation-5: -The centre of gravity(C.G.) of a body is defined as the point about which the algebraic sum of moments of weights of all the particles constituting the body is zero. The entire weight of the body can be considered to act at this point, howsoever the body is placed.

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