In a lab experiment, a cart is rolled along an inclined ramp while a student uses a motion detector to record the movement. At a certain instant in time, the motion detector indicates that the velocity and the acceleration of a cart on a ramp are both negative. Which of the following is true concerning this situation? A) The cart is speeding up and moving away from the detector. B) The cart is speeding up and moving towards the detector. C) The cart is slowing down and moving away from the detector. D) The cart is slowing down and moving towards the detector.

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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.