A watermelon is launched straight upwards and strikes the ground at the same elevation from which it is launched. It goes to a maximum height of 89.7 m before coming down. What was its initial velocity leaving the ground? What is its displacement 5.30s after it leaves the ground? What time will it take from when it is launched to when it reaches an elevation of 45.0 m on the way down?
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 watermelon is launched straight upwards and strikes the ground at the same elevation from which it is launched. It goes to a maximum height of 89.7 m before coming down. What was its initial velocity leaving the ground? What is its displacement 5.30s after it leaves the ground? What time will it take from when it is launched to when it reaches an elevation of 45.0 m on the way down?
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