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You are camping and ask the ranger for the directions to a nearby waterfall. He tells you to go 400 meters north and then 400 meters east. You will have traveled about 570 meters northeast from where you started. What is another name for this measurement?
Which is NOT a property of displacement?
A. It includes a direction.
B. It is a scalar measurement.
C. The units can be in meters.
D. It describes the change in position of an object from one point in time to another.
You are running late to meet a friend at the movies. She calls to ask where you are. What would you be describing if you told her you were 20 meters away from the movie theatre at that moment?
A. your length
B. your vector
C. your position
D. your displacement
Which of the following is an example of a scalar measurement?
A. 5 m
B. 10 m west
C. 15 m/hr upwards
D. 20 degrees south
Hey brother I am more than pleased to see that you asking yourself these questions in light of understanding vector quantities. Once you know how to manipulate vector quantities with scalar quantities you will start to see a world of full delight.
vector value, or velocity has magnitude (which is another way of saying how much) and direction (without direction vectors are meaningless). Therefore you would expect in all vector values a magnitude and direction.
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Vector is especially important in finding total displacement after a series of trips done with different velocities. Almost in all cases you will end up using trigonometry or by visualizing the distance covered in a geometric manner to find the displacement.
Displacement is in short words the overall SHORTEST distance from the starting point to arriving point.
Imagine that you draw two dots on a cartesian plane where you move about to get to the point A from point B. Regardless of how far you have moved or how great the magnitude of your distance covered the displacement will always be total shortest distance covered. This is often facilitated by connecting the two dots by a straight line and that's what we call a displacement and not the shortest distance from point A to point B
Anyway I hope this helps and let me know if you have doubts. Physics is often dismissed by beginners as being overly complicated but over time with a little bit of patience I am sure you will come to love physics and even become passionate about it.