A particle's position is given by x = 6.00 - 15.00t + 3t², in which x is in meters and t is in seconds. (e) Is there ever an instant when the velocity is zero? If so give the time t; if not answer "0." (f) Is there a time after t = 3 s when the particle is moving in the negative direction of x? If so give the time t; if not answer "0."
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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