A rock is tossed straight up from ground level with a speed of 30 m/s. When it returns, it falls into a hole 35 m deep. What is the rock's velocity just before it hits the bottom hole? How long is the rock in the air, from the instant it is released until it hits the bottom of the hole? What is the total distance traveled by the rock from the point of throw to the point where it hits the bottom of the hole?
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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A rock is tossed straight up from ground level with a speed of 30 m/s. When it returns, it falls into a hole 35 m deep. What is the rock's velocity just before it hits the bottom hole? How long is the rock in the air, from the instant it is released until it hits the bottom of the hole? What is the total distance traveled by the rock from the point of throw to the point where it hits the bottom of the hole? Sketch the velocity versus time graph, position versus time graph, and distance covered versus time graph. (Vertical as y-axis).
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