Sitting in a second-story apartment, a physicist notices a ballmoving straight upward just outside her window. The ball is visible for 0.25 s as it moves a distance of 1.05 m from the bottom tothe top of the window. (a) How much time does it take before theball reappears? (b) What is the greatest height of the ball abovethe top of the window?
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.
Sitting in a second-story apartment, a physicist notices a ball
moving straight upward just outside her window. The ball is visible for 0.25 s as it moves a distance of 1.05 m from the bottom to
the top of the window. (a) How much time does it take before the
ball reappears? (b) What is the greatest height of the ball above
the top of the window?
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