Squids can move through the waterusing a form of jet propulsion. Suppose a squid jets forward fromrest with constant acceleration for 0.170 s, moving through a distance of 0.179 m. The squid then turns off its jets and coasts to restwith constant acceleration. The total time for this motion (fromrest to rest) is 0.400 s, and the total distance covered is 0.421 m.What is the magnitude of the squid’s acceleration during (a) thetime it is jetting and (b) the time it coasts to a stop?
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.
Squids can move through the water
using a form of jet propulsion. Suppose a squid jets forward from
rest with constant acceleration for 0.170 s, moving through a distance of 0.179 m. The squid then turns off its jets and coasts to rest
with constant acceleration. The total time for this motion (from
rest to rest) is 0.400 s, and the total distance covered is 0.421 m.
What is the magnitude of the squid’s acceleration during (a) the
time it is jetting and (b) the time it coasts to a stop?
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