Define centre of mass.
Consider the following statements
Assertion $(A)$ : $A$ cyclist always bends inwards while negotiating a curve
Reason $(R)$ : By bending he lowers his centre of gravity Of these statements,
In the figure one fourth part of $a$ uniform disc of radius $R$ is shown. The distance of the centre of mass of this object from centre $‘O’$ is:
A circular plate of uniform thickness has diameter $56\ cm$. A circular part of diameter $42\ cm$ is removed from one edge. What is the position of the centre of mass of the remaining part ........ $cm$.
Explain the theoretical method for estimation of the centre of mass of a solid body.
There are some passengers inside $a$ stationary railway compartment. The track is frictionless. The centre of mass of the compartment itself (without the passengers) is $C_1$, while the centre of mass of the 'compartment plus passengers' system is $C_2$. If the passengers move about inside the compartment along the track.