Mastering Physics Solutions Chapter 3 Vectors In Physics
Mastering Physics Solutions Chapter 3 Vectors In Physics
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Chapter 3 Vectors In Physics Q.1CQ
For the following quantities, indicate which is a scalar and which is a vector: (a) the time it takes for you to run the 100-yard dash; (b) your displacement after running the 100-yard dash; (c) your average velocity while running; (d) your average speed while running.
Solution:
(A) Scalar, since there is no direction.
(B) Vector, since displacement depends on the direction.
(C) Vector, since velocity is a vector quantity.
(D) Scalar, since speed is a scalar quantity.
Chapter 3 Vectors In Physics Q.1P
Suppose that the component of a certain vector is doubled, (a) By what multiplicative factor docs the magnitude of the vector change? (b) By what multiplicative factor does the direction angle of the vector change?
Solution: