A particle begins from rest at a point +10.0 m from the origin at time t = 0 s, and begins accelerating at a constant 2 m/s2 in the negative direction. At time t = 4 s, the particle has reached a certain speed; it stops accelerating, and continues traveling with that same speed until t = 7 s. What is its position relative to the origin at t = 7 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.
A particle begins from rest at a point +10.0 m from the origin at time t = 0 s, and begins accelerating at a constant 2 m/s2 in the negative direction. At time t = 4 s, the particle has reached a certain speed; it stops accelerating, and continues traveling with that same speed until t = 7 s. What is its position relative to the origin at t = 7 s?
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