Standing at the base of one of the cliffs of Mt. Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 123 m. He can't s rock right away but then does, 1.59 s later. (a) How far (in m) above the hiker is the rock when he can see it? (b) How much time (in s) does he have to move before the rock hits his head?
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.
![(e) What is the initial velocity of the ball?
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(f) What is the maximum height that the ball reaches?
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Standing at the base of one of the cliffs of Mt. Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 123 m. He can't see the
rock right away but then does, 1.59 s later.
(a) How far (in m) above the hiker is the rock when he can see it?
(b) How much time (in s) does he have to move before the rock hits his head?
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