Definitions [4]
Define Speed.
The distance covered by a body in a unit time is called its speed. It is also defined as the rate of change position of a body in any direction.
Speed = distance/time
Define speed Mention its formula and unit.
Speed is the rate of change of distance.
Formula: Speed = distance /time
Unit is meter/second (m/s)
Define second’s pendulum.
A simple pendulum whose period of oscillation is exactly two seconds is called a second’s pendulum.
Period (T) = `2 pi sqrt(L/g)`
Define an ideal simple pendulum.
An ideal simple pendulum consists a point mass suspended from a perfectly rigid support by weightless, inextensible and perfectly flexible fibre.
An ideal simple pendulum is a heavy particle suspended by a massless, inextensible, flexible string from a rigid support.
