9. (Target K1) You are sitting under a tree, enjoying a nice summer day. Unbeknownst to you, your friend is perched a branch, 3.5 m above the ground, with a water balloon that they drop directly above your head. When sitting, your head is 0.75 m above the ground. You hear your friend laugh and look up to see the water balloon when it is 1.5 m above your head. (a) At this time, what is the speed of the water balloon? (b) How much time does it take the water balloon to reach your head, from the time that you
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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