1. An object is dropped from a roof of a building of height h. During the last second of its descent, it drops a distance h/3. (a) Solve for t, the total time in the air. Enter to 3 significant figures t = S (b) Calculate the height of the building. Enter to 3 significant figures h= m Think & Prepare 1. Let t be the total time of descent. 2. Draw a labeled sketch of the motion. Mark the two legs of the motion, the entire motion, and the last second of motion. 3. Set up two equations in terms of h, g and t. 4. Solve the two equations to calculate the unknowns.
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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