3. John throws a rock upward with an initial speed of 29.4 m/s from the top of a 30.0-meter tower. It just misses the building as it travels to the ground. Assume a = -9.80 m/s² and air resistance is ignored. What is the rock's velocity the instant before it hits the ground? [Sec2.6] How long is the rock in the air? What maximum height did the rock reach above the tower? 0 m- -30 m O TO30
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.
![3.
John throws a rock upward with an initial speed of 29.4 m/s from the top of a 30.0-meter tower. It just
misses the building as it travels to the ground. Assume a = -9.80 m/s² and air resistance is ignored.
What is the rock's velocity the instant before it hits the ground?
[Sec2.6]
How long is the rock in the air?
What maximum height did the rock reach above the tower?
0 m-
-30 m
O
TO30](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F707f57dc-8d4e-41a4-ab1c-516e2bc76725%2Fca504308-3b59-4f07-9418-3677551e8daa%2Fz5a8for_processed.jpeg&w=3840&q=75)
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