A car starts from rest at a station and runs with constant acceleration. The car is 140 ft from the station 2 sec after passing a point which isa 92 ft from the station. Four seconds after passing the 92 ft point, it is 198 ft from the station, and 6 sec after passing this point, it is 266 ft from the station. a. What is the average velocity of the car during each 2-sec interval after passing the 92 ft point? b. What is the acceleration of the car? c. What was the velocity of the car when it passed the 92-ft point? d. How long did it take to go from station to the 92-ft point?
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 at a station and runs with constant acceleration. The car is 140 ft from the station 2 sec after passing a point which isa 92 ft from the station. Four seconds after passing the 92 ft point, it is 198 ft from the station, and 6 sec after passing this point, it is 266 ft from the station.
a. What is the average velocity of the car during each 2-sec interval after passing the 92 ft point?
b. What is the acceleration of the car?
c. What was the velocity of the car when it passed the 92-ft point?
d. How long did it take to go from station to the 92-ft point?
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