A particle moving with rectilinear motion starts from rest and is given a constant acceleration of 4 m/sec² to the left for 4 sec, after which it moved at a constant velocity for 3 sec, then the particle come to rest after travelled a displacement of 120 m to the left of the starting point. Determine: (a) The required acceleration after the 7 sec. (b) The velocity of the particle when the displacement is 75 m to the left. (c) The total distance travelled. (Use V-t diagram only for solving the problem.)
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.
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