14 Jamelle stands at the window of a building 6.2 m above ground level. She throws her keys straight out of the window (horizontally) and hopes that her friend Rochelle, who is standing 10.4 m out from the base of the building, will catch them. Ignoring air resistance and using g = 10 m s² for the acceleration due to gravity, find the speed at which Jamelle needs to throw her keys, correct to 1 decimal place. -2
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.
Jamelle stands at the window of a building 6.2 m above ground level. She throws her keys straight out of the window (horizontally) and hopes that her friend Rochelle, who is standing 10.4 m out from the base of the building, will catch them. Ignoring air resistance and using g = 10m/s^2 for the acceleration due to gravity, find the speed at which Jamelle needs to throw her keys, correct to 1 decimal place.
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