In the relation = + , and are measured in metre (m) and is measured in second (s). The SI unit of must be

In the relation = + , and are measured in metre (m) and is

1.	In the relation = + , and are measured in metre (m) and is measured in second (s). The SI unit of must be
A.	m
B.	ms
C.	s
D.	ms
E.	<sup>-1</sup>
Answer» E. <sup>-1</sup>