Short answerEasy2 marks
State two factors on which the position of Center of Gravity of a body depends.
Topic: Centre of gravity
Question wording verified against source paper
Answer
Exam answer
The position of the centre of gravity depends on:
- the shape of the body; and
- the distribution of mass in the body.
Explanation
A change in either shape or mass distribution can shift the point through which the body's weight effectively acts.
Example
A uniform rod has its centre of gravity at its midpoint, while a rod made heavier at one end has its centre of gravity nearer the heavier end.
More from Force
For a body to be in dynamic equilibrium, its:
(a) momentum should be zero
(b) acceleration should be zero
(c) kinetic energy should be zero
(d) velocity should be zero2026A car is moving in uniform circular motion. The direction of friction between the tyres and the path is ............... [towards the centre / tangential to the path].2026Which force produces negative moment?2026Is the wheel in equilibrium? (Yes or No)2026Justify your answer stated in (b).2026(i) A body is acted upon by two equal and opposite forces, that are NOT along the same straight line. The body will:
(a) remain stationary
(b) have only rotational motion
(c) have only rectilinear motion
(d) have both rectilinear and rotational motion2025