Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.
Total displacement = 0 blocks
Displacement : It is defined as the total distance between the initial and the final positions of the moving object or a body. The total displacement can be 0 in case the initial and the final positions of the body are same.
The distance traveled by Johnny from his house to his friends house = 4 blocks
Then he immediately returns to his house, so the total distance then covered = 4 blocks
Total distance traveled = 4 + 4
= 8 blocks
But the initial position of Johnny is his house and the final position of Johnny is also his house
Therefore, the initial and the final position of Johnny is same and this can be used as a reference point for the given problem.
⇒ Total displacement = 0 blocks
could be used as a reference angle for .
Given the trigonometric expression
In order to find the reference angle for , find an angle that is positive, less than , and coterminal with
Subtract from .
The resulting angle of is positive, less than , and coterminal with .
Since the angle is in the fourth quadrant, subtract
Therefore, could be used as a reference angle for .
Keywords: reference angle
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URL, Domain Name
Explanation: Web is also referred as the world wide web(www) which has the collection of the internet servers for the formatted document in a system to support it.
Uniform Resource Locator (URL) is also close to web because it gives specification of the addresses on web.It is supposed to identify the network that any particular resource is connected to the www. Domain name is also a related unit of web as it used for identification of the IP addresses .It is also used for identification of any website as apart of the URL.