A rock is thrown, from the edge of a building of height h (with respect to the ground), vertically upwards with a speed V1a = 10.0 m/s. On its way down, the rock just slides off the edge of the building and continues to fall until it reaches a speed V1b = 20.0 m/s just before hitting the ground. (a) What is the height h of the building? (b) What is the maximum height that the rock reaches? (c) What is the rock's flight time from when it is thrown until it reaches the ground? (d) If at the instant the first rock is thrown, Another rock is thrown vertically up from the ground with a speed V2a = 20.0 m/s, how high would the rocks reach?
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 rock is thrown, from the edge of a building of height h (with respect to the ground), vertically upwards with a speed V1a = 10.0 m/s. On its way down, the rock just slides off the edge of the building and continues to fall until it reaches a speed V1b = 20.0 m/s just before hitting the ground.
(a) What is the height h of the building?
(b) What is the maximum height that the rock reaches?
(c) What is the rock's flight time from when it is thrown until it reaches the ground?
(d) If at the instant the first rock is thrown,
Another rock is thrown vertically up from the ground with a speed V2a = 20.0 m/s, how high would the rocks reach?
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