At a given instant in time, a 4-kg rock that has been dropped from a high cliff experiences a force of air resistance of 15 N. What are the magnitude and direction of the accelera- tion of the rock? (Do not forget the gravitational force!)
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.
![E15. At a given instant in time, a 4-kg rock that has been dropped
from a high cliff experiences a force of air resistance of
15 N. What are the magnitude and direction of the accelera-
tion of the rock? (Do not forget the gravitational force!)
At given instant in time 5-kg rock is observed to be
B16](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0547da28-4bcb-4b08-89b9-280bbfecc3c5%2Ff67b083c-706a-4d58-8db0-d3b62234d713%2For12lea_processed.jpeg&w=3840&q=75)
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