1. A particle moves along the x-axis according to x(t) = 10t-2.5t² m. Assume all quantities are correct to 2 significant figures. (a) What is the instantaneous velocity at t = 2.4 s and t = 3 s? Enter to 2 significant figures v(t = 2.4 s) = v(t=3s) = s(t = 3 s) = Vavg (b) What is the instantaneous speed at these times? Enter to 2 significant figures s(t = 2.4 s) = = m m m S S S m S (c) What is the average velocity between t = 2.4 s and t = 3 s? Enter to 2 significant figures m S
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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