A physics student at a track meet has a radar gun which she can use to measure the speeds of the runners. Shortly after the start of one race she measures that the speed of a runner is 1.57 m/s. When the runner is 11.2 meters farther along the track, she measures the runner’s speed to be 7.87 m/s. Determine the runner’s acceleration during this interval (assuming the runner’s acceleration is constant)?
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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