6. A ball is thrown horizontally from the roof of a building 7.5 m tall and lands 9.5 m from the base of the building( dx = 9.5 m.) What was the balls initial speed?
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.
6) Ball initial speed = Ball initial horizontal speed = ux
Ball initial vertical speed, uy = 0
Ball horizontal acceleration, ax = 0
Ball vertical acceleration, ay = 9.8 m/s2
Height of the building, h = 7.5 m
Horizontal distance travelled, dx = 9.5 m
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