Janus drops a stone from a bridge 25 m above the water. With what velocity does it hit the water? A brick falls freely from a high scaffold and hits the ground after 3.5 seconds. How high is the scaffold? What is the velocity of the brick just before hitting the ground? A juggler tosses three balls alternately vertically upward. Each ball has an initial velocity of 3.7 m/s. How high does each ball rise? How long does each ball remain in the air?
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.
- Janus drops a stone from a bridge 25 m above the water. With what velocity does it hit the water?
- A brick falls freely from a high scaffold and hits the ground after 3.5 seconds. How high is the scaffold? What is the velocity of the brick just before hitting the ground?
- A juggler tosses three balls alternately vertically upward. Each ball has an initial velocity of 3.7 m/s. How high does each ball rise? How long does each ball remain in the air?
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