Vectors and scalars. A scalar is an ordinary number a magnitude without a direction may have units (kg)or be just a number usually indicated by a regular letter, no bold face and no arrow on top Note: the lack of specific designation of a scalar can lead to confusion The product of a vector and a scalar is another vector in the same direction but with modified magnitude A=-0.75B B A Physics 121: Lecture 5, Pg 11
Physics 121: Lecture 5, Pg 11 Vectors and scalars: A scalar is an ordinary number. a magnitude without a direction may have units (kg) or be just a number usually indicated by a regular letter, no bold face and no arrow on top. Note: the lack of specific designation of a scalar can lead to confusion The product of a vector and a scalar is another vector in the same direction but with modified magnitude. A A B = -0.75 B
Lecture 5. AcT2 Vectors and scalars While i conduct my daily run, several quantities describe my condition Which of the following is not a vector (For bonus points, which answer has a reasonable magnitude listed?) A)my velocity (3 m/s) B) my acceleration downhill (30 m/s) C)my destination D)my mass(150 kg) ( the pub,000 m) Physics 121: Lecture 5, Pg 12
Physics 121: Lecture 5, Pg 12 Lecture 5, ACT 2 Vectors and Scalars A) my velocity (3 m/s) C) my destination (the pub - 100,000 m) B) my acceleration downhill (30 m/s2 ) D) my mass (150 kg) Which of the following is not a vector ? (For bonus points, which answer has a reasonable magnitude listed ?) While I conduct my daily run, several quantities describe my condition