rock is thrown vertically upward with a speed of 14.0 m/sfrom the roof of a building that is 70.0 m above the ground. Assume free fall. 1) In how many seconds after being thrown does the rock strike the ground? Express your answer in seconds. 2) What is the speed of the rock just before it strikes the ground? Express your answer in meters per second.
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 rock is thrown vertically upward with a speed of 14.0 m/sfrom the roof of a building that is 70.0 m above the ground. Assume free fall.
1) In how many seconds after being thrown does the rock strike the ground?
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