An elevator without a ceiling is ascending with a constant speed of 10 m/s. a boy on the elevator throws a ball directly upward, from a height of 2.0 m above the elevator floor, just as a elevator floor is 28 m above the ground. The initial speed of the ball with respect to the elevator is 20 m/s. How long (in seconds) does the ball take to return to 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.
![An elevator without a ceiling is ascending with a constant speed of 10 m/s. a boy on the
elevator throws a ball directly upward, from a height of 2.0 m above the elevator floor, just
as a elevator floor is 28 m above the ground. The initial speed of the ball with respect to the
elevator is 20 m/s. How long (in seconds) does the ball take to return to the elevator floor?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a923021-0eaa-4798-84d3-424b4e4a0ff4%2Fc4555299-f858-44f7-ba97-1d0b313450b4%2Ff3088r_processed.jpeg&w=3840&q=75)
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