A car starts from rest and travels for 5.0 s with a uniform accelerationof +1.5 m/s2. The driver then applies the brakes, causinga uniform acceleration of -2.0 m/s2. If the brakes areapplied for 3.0 s, (a) how fast is the car going at the end of thebraking period, and (b) how far has the car gone?
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 car starts from rest and travels for 5.0 s with a uniform acceleration
of +1.5 m/s2. The driver then applies the brakes, causing
a uniform acceleration of -2.0 m/s2. If the brakes are
applied for 3.0 s, (a) how fast is the car going at the end of the
braking period, and (b) how far has the car gone?
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