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Why is magnitude alone insufficient to specify a force?
A
A larger mass has greater inertia.
B
Force is a vector, so its direction is also required.
C
Its acceleration is zero, so its velocity remains constant.
D
The weight of a mass mmm is given by W=mgW=mgW=mg, where near Earth's surface g=9.8 m s−2\boxed{g=9.8\text{ m s}^{-2}}g=9.8 m s−2 unless stated otherwise.
Card 1 of 20
2.8.1 Forces and Newton's laws Flashcards
20 flashcards on WJEC A Level Maths 2.8.1 Forces and Newton's laws: the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.