If the particle starts from rest, what is its velocity, m/s, at t = 4 s? a (m/s) 10 t(S) 4

British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.