MYTUTOR SUBJECT ANSWERS

607 views

What is the 'centre of gravity' of an object and how do I calculate it?

The centre of gravity (or centre of mass) of an object is the point through which an object's weight will act through. In other words, the object will always balance around this point.

Imagine a square book; the centre of mass of the book is where the lines of symmetry of the book meet. As it is a square this is right in the middle of the book. Position the book on the edge of a table and it will only tip over the edge once this point is no longer in contact with the table. 

In order to find the centre of gravity of an object, simply hang the object freely from a corner. Using a plumb bob for reference, draw a vertical line downwards from the point of suspension. Repeat this process for at least two more corners, and the point at which the lines intersect is the centre of gravity.

Matthew  B. A Level Physics tutor, GCSE Physics tutor, A Level Maths ...

1 year ago

Answered by Matthew , an A Level Physics tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

106 SUBJECT SPECIALISTS

£20 /hr

Laura K.

Degree: Chemical Engineering (Masters) - Bath University

Subjects offered:Physics, Science+ 3 more

Physics
Science
Maths
Further Mathematics
Chemistry

“Hey there! I am Laura and I am currently studying Chemical Engineering at University of Bath. I am really passionate about Science and I am willing to share my knowledge through tutoring you. My passion and expertise in science can be...”

Ashika V. GCSE Maths tutor, A Level Maths tutor, IB Maths tutor, 13 P...
£26 /hr

Ashika V.

Degree: Physics (Masters) - Manchester University

Subjects offered:Physics, Maths+ 2 more

Physics
Maths
Extended Project Qualification
-Personal Statements-

“Hi I'm Ashika, a third year MPhys Physics student at the University of Manchester. I tutor in Maths and Physics, Personal Statements and the EPQ.”

£24 /hr

Ayusha A.

Degree: BEng electrical and electronics engineering (Bachelors) - Newcastle University

Subjects offered:Physics, Maths+ 1 more

Physics
Maths
Further Mathematics

“About me: I am a final year Electrical and Electronic Engineering student at Newcastle University. I took Mathematics, Further Mathematics, Chemistry and Physics as my A-level subjects. I did peer mentoring in university and also have...”

About the author

£20 /hr

Matthew B.

Degree: Physics (Masters) - Warwick University

Subjects offered:Physics, Maths

Physics
Maths

“About Me:  I am a physics undergraduate at the University of Warwick. I have always been interested in science and curious about the world around us; I am passionate about education andlearning new things. It is my aim to help you bec...”

MyTutor guarantee

You may also like...

Posts by Matthew

How do capacitors work and what are its units?

What is Olbers' Paradox?

What is the 'centre of gravity' of an object and how do I calculate it?

Other A Level Physics questions

Why can't you hear any noise in space?

A DVD is dropped from rest. The DVD does not reach terminal velocity before it hits the ground. Explain how the acceleration of the DVD varies from the instant it is dropped until just before it hits the ground.

What is gravitational potential energy? Why is it negative?

The vehicle accelerates horizontally from rest to 27.8 m s–1 in a time of 4.6 s. The mass of the vehicle is 360 kg and the rider has a mass of 82 kg. 1. Calculate the average acceleration during the 4.6 s time interval.

View A Level Physics tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok