(a) In unit-vector notation, what is the sum of a = (5.6 m )î + (2.1 m )ƒ and b = ( − 10.0 m )i + (7.8 m ). What are (b) the magnitude and (c) the direction of a + b (relative to i)? (a) Number i (b) Number i (c) Number i Units Units i Ĵ Units

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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.