4. Two cars, A and B, travel in the same direction on a highway. At one moment, car A has a greater velocity than car B. This means at that moment: a. Acceleration of car A is greater than that of car B. b. Acceleration of car A is less than that of car B. C. Acceleration of both cars are equal. d. Only the magnitudes of the acceleration of both cars are equal. e. There is not enough information to draw any conclusions regarding acceleration. 5. In uniform circular motion, centripetal acceleration vector is always: a. Parallel to the velocity. b. Perpendicular to the velocity. c. In the same direction as the velocity. d. In the opposite direction from the velocity. e. Sometimes parallel, sometimes perpendicular to the velocity vector. Angle changes as the position changes.
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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