4. A snowball is thrown out the window of a car moving. at 20 m/s. The ball is thrown vertically to hit a snowman 20 meters away at window level. What speed would the snowball need to be thrown to hit the snowman? A) 2.5 m/s C) 9.8 m/s E) 19.6 m/s B) 4.9 m/s D) 14.7 m/s
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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