A wind-up toy car is released from rest. It accelerates up to a maximum speed over the first 2 m it travels before slowing back down to a stop over the next 5 m. If the car travels in the positive direction, what is the direction of its acceleration (a) over the first 2 m and (b) over the last 5 m? (c) Over which distance is the magnitude of the acceleration greater?
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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A wind-up toy car is released from rest. It accelerates up to a maximum speed over the first 2 m it travels before slowing back down to a stop over the next 5 m. If the car travels in the positive direction, what is the direction of its acceleration (a) over the first 2 m and (b) over the last 5 m? (c) Over which distance is the magnitude of the acceleration greater?
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