A new unit of force is defined so that unit of force equals

PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

A new unit of force is defined so that

1

unit of force equals

20\,\text{N}

, while the fundamental units of length and mass remain the metre and kilogram. What is the magnitude of the new unit of time in seconds? (a)

4.47\,\text{s}

(b)

0.707\,\text{s}

(c)

0.224\,\text{s}

(d)

0.316\,\text{s}