Question

(a) Find the amplitude, frequency, and period of motion for an object vibrating at the end of a horizontal spring if the equation for its position as a function of time is the following. x = (0.225 m) cos ???? 8.00 t A = m f = Hz T = s (b) Find the maximum magnitude of the velocity and acceleration. vmax = m/s amax = m/s2 (c) What are the position, velocity, and acceleration of the object after 1.45 s has elapsed? x = m v = m/s a = m/s2

Answer 1

When a function p(x) determines location, the velocity and acceleration are its first and second derivatives, respectively.

The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t). This enables you to calculate the change in velocity in meters per second squared (m/s2). Since acceleration is a vector quantity, both its magnitude and its direction are included. The speed and direction of an object's motion are its velocity. Alternatively put, velocity is the pace at which an object's position changes (where position incorporates direction by specifying whether the object is moving backwards or forwards on a line, or moving sideways or up and down in two or three dimensions).

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