Two students, Amy and Bob, each throw a rock horizontally from a cliff with different initial velocities. Amy throws rock A with a greater initial speed than Bob throws rock B. (a) Sketch the velocity vs. time graphs for each rock using the system where down is the - vertical direction and away from the cliff is the + horizontal direction. You should have four sketches, as indicated by the axes below. Explain why you drew each graph as you did. Rock A (faster) Rock B (slower) d v (horizontal) v (vertical) time time v (horizontal) v (vertical) time time (b) Sketch the corresponding acceleration vs. time graphs for each rock. Explain why you drew each graph as you did.

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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.