Question

Give reasons
a. SI units are used for scientific work.
b. unit of speed is a derived unit.

Answer 1

Answer:

${\huge{\textbf{\textsf{{\color{navy}{♡ An}}{\purple{sw}}{\pink{er ♡}}}}}}$

A) SI is used in most places around the world, so our use of it allows scientists from disparate regions to use a single standard in communicating scientific data without vocabulary confusion.

B) In physics there are many quantities that cannot be expressed by a single base unit. Therefore, the unit of speed is the meter per second, or m/s. The unit meter per second is called a derived unit, meaning that it is derived from the seven SI base units.

Answer 2

$\huge\sf{Answer:-}$

A) SI is used in most places around the world, so our use of it allows scientists from disparate regions to use a single standard in communicating scientific data without vocabulary confusion.

B) In physics there are many quantities that cannot be expressed by a single base unit. Therefore, the unit of speed is the meter per second, or m/s. The unit meter per second is called a derived unit, meaning that it is derived from the seven SI base units.