(II) A rocket rises vertically, from rest, with an acceleration of 3.2m/s2 until it runs out of fuel at an altitude of 775 m. After this point, its acceleration is that of gravity, downward. (a) What is the velocity of the rocket when itruns out of fuel? (b) How long does it take to reach this point? (c) What maximum altitude does the rocket reach?(d) How much time (total) does it take to reachmaximum altitude? (e) With what velocity does it strikethe Earth? (f) How long (total) is it in the air?
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.
(II) A rocket rises vertically, from rest, with an acceleration of 3.2m/s2 until it runs out of fuel at an altitude of 775 m. After this point, its acceleration is that of gravity, downward. (a) What is the velocity of the rocket when it
runs out of fuel? (b) How long does it take to reach this point? (c) What maximum altitude does the rocket reach?
(d) How much time (total) does it take to reach
maximum altitude?
(e) With what velocity does it strike
the Earth?
(f) How long (total) is it in the air?
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