A projectile is launched straight up at 69.5 m/s from a height of 80 m, at the edge of a sheer cliff. The projectile falls, just missing the cliff and hitting the ground below. (a) Find the maximum height of the projectile above the point of firing. m (b) Find the time it takes to hit the ground at the base of the cliff. s (c) Find its velocity at impact. m/s
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 projectile is launched straight up at 69.5 m/s from a height of 80 m, at the edge of a sheer cliff. The projectile falls, just missing the cliff and hitting the ground below.
m
(b) Find the time it takes to hit the ground at the base of the cliff.
s
(c) Find its velocity at impact.
m/s
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