Two children, one at the front of a parade float and one at the back, are playing catch with a ball. Each sees the other as tossing the ball at 4.0 m/s. The float moves down the road at 2.0 m/s. At what speed do the two children toss the ball from the point of view of a spectator watching the float move by?
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.
Two children, one at the front of a parade float and one at the back, are playing catch with a ball. Each sees the other as tossing the ball at 4.0 m/s. The float moves down the road at 2.0 m/s. At what speed do the two children toss the ball from the point of view of a spectator watching the float move by?
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