You are standing on the edge of a cliff of an unknown height and decide to throw a rock straight up at the edge with an initial velocity of 8.00 m/s. You time that it takes the rock 2.35 s for a rock to hit the ground from the moment it left your hand to when it hits the ground. (a) What must be the cliff height? (b) How long a time would it take to reach the ground if it is thrown straight down with the same speed
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.
You are standing on the edge of a cliff of an unknown height and decide to throw a rock straight up at the edge with an initial velocity of 8.00 m/s. You time that it takes the rock 2.35 s for a rock to hit the ground from the moment it left your hand to when it hits the ground.
(a) What must be the cliff height?
(b) How long a time would it take to reach the ground if it is thrown straight down with the same
speed?
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