A rocket blasts off and moves straight upward from the launchpad with constant acceleration. After 2.8 s the rocket is at a heightof 91 m. (a) What are the magnitude and direction of the rocket’sacceleration? (b) What is its speed at this time?
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 blasts off and moves straight upward from the launch
pad with constant acceleration. After 2.8 s the rocket is at a height
of 91 m. (a) What are the magnitude and direction of the rocket’s
acceleration? (b) What is its speed at this time?
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