While riding on an elevator descending with a constant speedof 3.0 m>s, you accidentally drop a book from under your arm.(a) How much time does it take for the book to reach the elevatorfloor, 1.2 m below your arm? (b) What is the book’s speed relativeto you when it hits the elevator floor?
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.
While riding on an elevator descending with a constant speed
of 3.0 m>s, you accidentally drop a book from under your arm.
(a) How much time does it take for the book to reach the elevator
floor, 1.2 m below your arm? (b) What is the book’s speed relative
to you when it hits the elevator floor?
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