Question

(v) Motion of wheel of a bicycle is
Why can a pace or a footstep not be used as a standard unit of length?
tude:​

Answer 1

Answer:

A pace or a footstep cannot be used as a standard unit of length as the size of foot of two persons will be different from each other. As a result the distance measured will not be same. This will lead to confusion while measuring the lengths.

Answer 2

Answer:

v. circulatory motion

Because all persons' footsteps are not same.