The x and y coordinates of an object moving in the xy plane are given by the following expressions x = 10 t+ 5 and y = - 4 t, where x is in meters and t is in seconds. The acceleration vector (in m/s) of the object at t = 4 s is O a. 20 i - 32 j O b. - 8j O c. 20 i O d. - 32 j
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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