A rocket is fired vertically upward with an initial velocity of 80 m/s at the ground level. Its engine then fires and it accelerated at 4m/s2 until it reaches an altitude of 1200m. At that point, the engine fail and the rocket goes into free fall. Disregard air resistance. How long was the rocket above the ground?
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 rocket is fired vertically upward with an initial velocity of 80 m/s at the ground level. Its engine then fires and it accelerated at 4m/s2 until it reaches an altitude of 1200m. At that point, the engine fail and the rocket goes into free fall. Disregard air resistance. How long was the rocket above the ground?
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