Vector  a→a→ has components ax = −4.20 m/s2 and ay = +7.30 m/s2. a. What is the magnitude of the vector  a→a→ ?  answer in m/s^2 b.What is the direction of a→a→ ? Enter the angle in degrees where positive indicates an angle counterclockwise from the +y-axis and negative indicates an angle clockwise from the +y-axis. answer in degrees

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.