1.) A pebble is dropped from a height of 86.0m above the ground. Another pebble is thrown vertically down from the same height 0.75 s after the first one is dropped. Both pebbles reached the ground at the same time. What was the initial vertical speed of the second pebble? A. 6.3 m/s B. 6.8 m/s C. 8.2 m/s D. 8.7m/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.
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