3. A particle moves along the x-axis according to x(t) = 10t – 2t? m. a. What is the instantaneous velocity at t = 2 s and t = 3 s? b. What is the instantaneous speed at these times? c. What is the average velocity between t = 2 s and t= 3 s? 4. A particle moves in a straight line with an initial velocity of 33 m/s and constant acceleration 33 m/s?. a. What is its displacement at t = 4 s? b. What is its velocity at this same time?
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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