An overhead view of part of a pinball game is shown. If the plunger imparts an initial speed of 3.8 m/s to the ball at time t = 0, determine the acceleration a of the ball (a) at time t = 0.10 s and (b) at time t = 0.21 s. At point F, the speed of the pinball has decreased by 17% from the initial value, and this decrease may be assumed to occur uniformly over the total distance traveled by the pinball. Use the values r = 180 mm and 0 = 52° A wwwww Answers: y L--x r (a) t = 0.10 s, a = (b) t = 0.21s, a = B (i ( i > D- E X r i+ i i+ i F j) m/s² j) m/s²
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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