|
|
|||||||||||||||||||
|
59. ssm The speed of an object and the direction in which it moves constitute a vector quantity known as the velocity. An ostrich is running at a speed of 17.0 m/s in a direction of 68.0° north of west. What is the magnitude of the ostrich’s velocity component that is directed (a) due north and (b) due west? |
|||||||||||||||||||
|
|
|||||||||||||||||||
|
|
|||||||||||||||||||
|
The north and south components
are perpendicular so it is the normal equations for components. |
|||||||||||||||||||
|
The north component is
opposite q and so sin will be used, while
the west component is adjacent to q so cos will be used: |
|||||||||||||||||||
|
|
|||||||||||||||||||
|
|
|||||||||||||||||||
|
|
|||||||||||||||||||
|
|
|||||||||||||||||||
|
|||||||||||||||||||
|
|
|||||||||||||||||||
|
|||||||||||||||||||
|
|
