A certain body moves along a straight line according to the laws s= t^3+8t^2-2t (s in feet and in seconds). Find its acceleration at the end of 3 seconds. A. 34 ft/s? B. 93 ft/s? C. 28 ft/s? D. 73 ft/s?
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 certain body moves along a straight line according to the laws s= t^3+8t^2-2t (s in feet and in
seconds). Find its acceleration at the end of 3 seconds.
A. 34 ft/s?
B. 93 ft/s?
C. 28 ft/s?
D. 73 ft/s?
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