Card 1 of 23
Which SI base units are used for length, time and mass?
A
Velocity changes by 2.4 m s−12.4\text{ m s}^{-1}2.4 m s−1 each second.
B
The athlete's final and initial positions match, so displacement is zero.
C
21 N21\text{ N}21 N
D
- Length: metre (m)
- Time: second (s)
- Mass: kilogram (kg)
Card 1 of 23
2.6.2 Quantities and units in mechanics Flashcards
23 flashcards on WJEC A Level Maths 2.6.2 Quantities and units in mechanics: the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.