A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For each answer, enter a number.) Velocity (m/s) 14 12 8 0 Runner Velocity vs. Time Time (s) m/s² 8 (a) What is his average velocity (in m/s) for the first 4 s? X m/s 10 (b) What is his instantaneous velocity (in m/s) at t = 6 s? X m/s (d) What is his time (in s) for the race? (c) What is his average acceleration (in m/s2) between 0 and 4 s? 12
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.
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