A cheetah starts from rest, accelerates to its maximum speed (we'll assume the acceleration is constant during that time), then runs at its maximum speed for a little while, then collapses from exhaustion. Assume that the cheetah is moving in the positive x direction. In each of the following questions, you'll identify which graph goes with which quantities (and you are allowed to use the same graph more than once).
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.
Which graph could represent the x component of the net force on the cheeta vs time, the kinetic energy of the cheeta vs time, and the x component of momentum of the cheeta vs time?
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