Front

Centre of mass

Back

The centre of mass is the point where the entire mass of an object can be assumed to be concentrated to understand its motion.

Front

How do you calculate the centre of mass of an object?

Back

Calculate the weighted average position of all mass elements by multiplying each mass element by its position vector, summing these values, and dividing by the total mass of the object.

Front

Why is it important to know the centre of mass of an object?

Back

It is important to know the center of mass of an object to understand its stability, predict its motion, and determine how it interacts with other objects.

Front

Explain the concept of equilibrium in terms of centre of mass.

Back

Equilibrium in terms of center of mass refers to the state where the center of mass of an object remains at rest or moves at a constant velocity due to the net force acting on the object being zero.

Front

Applications of centre of mass in real life?

Back

Designing stable structures, analyzing motion, understanding balance of vehicles, optimizing sports equipment

Front

Describe the difference between centre of mass and centroid.

Back

The centre of mass is used in physics to simplify calculations involving mass distribution, while the centroid is used in mathematics and engineering to determine the geometric center of shapes.

Front

How does the shape of an object affect its centre of mass?

Back

The shape of an object affects its centre of mass by determining how the mass is distributed around the object.

Front

Can the centre of mass of an object be outside the object?

Back

No

Front

What happens to the stability of an object if its centre of mass is higher?

Back

The stability decreases.

Front

How can you find the centre of mass of irregularly shaped objects?

Back

Use the principle of balancing the object on a pivot point until it remains stable to find the center of mass.