NT3A-QRT21: POSITION TIME GRAPHS OF TWO CHILDREN-KINEMATICS The graph at right is of the motion of two children, Ariel and Byron, who are moving along a straight hallway. The vertical axis is not labeled. a) If the vertical axis is position, does either child ever change direction? If so, at what time or times does this change in direction occur? Explain.
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
![NT3A-QRT21: POSITION TIME GRAPHS OF TWO CHILDREN-KINEMATICS
The graph at right is of the motion of two children, Ariel and
Byron, who are moving along a straight hallway. The vertical axis
is not labeled.
a) If the vertical axis is position, does either child ever change
direction? If so, at what time or times does this change in
direction occur?
Explain.
Ariel
Byron
Time, s
b) If the vertical axis is position, are the two children ever at the same position along the hallway? If
so, at what time or times?
Explain.
c) If the vertical axis is position, do the two children ever have the same speed? If so, at what time
or times?
Explain.
d) If the vertical axis is position, do the two children ever have the same acceleration? If so, at what
time or times?
Explain.
e) If the vertical axis is velocity, do either of the children ever change direction? If so, at what time
or times does this change in direction occur?
Explain.
f) If the vertical axis is velocity, do the two children ever have the same velocity? If so, at what tim
or times?
Explain.
hildren over have the same acceleration? If so, at](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcb8eaf99-051a-48be-b4ce-9ed11c8ed1bc%2F6c1dcfa9-3092-4d9a-8d05-db760f6977f8%2Ficf1r0v_processed.jpeg&w=3840&q=75)
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