A child drops a ball from a window. the ball strikes the ground in 3.0 seconds. what is the velocity of the ball the instant before it hits the ground? Is the acceleration due to gravity always negative or positive or it depends?
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.
A child drops a ball from a window. the ball strikes the ground in 3.0 seconds. what is the velocity of the ball the instant before it hits the ground?
Is the acceleration due to gravity always negative or positive or it depends?
Please explain in an easy to understand way.
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