012 points | Previous Answers oscolPhys1 16.Po22WA. A mass attached to the end o

Question

012 points | Previous Answers oscolPhys1 16.Po22WA. A mass attached to the end of a spring is oscillating with a period of 2.25 s on a horizontal frictionless surface. The mass was released from rest at t = 0 from the position x = 0.0340 m. (a) Determine the location of the mass at t6.05 s? 0.0325 Given an expression for the position of the oscillating mass at any time, how may we determine the position at some specific time? m (b) Determine if the mass is moving in the positive or negative x direction at t = 6.05 s? positive x direction negative x direction During which fractions of the period is the oscillating mass traveling in the positive/negative x direction? Supporting Materials

Explanation / Answer

a) T = 2 pi / w

w = 2 pi / T = 2 pi / 2.25 = 2.79 rad/s

x = A cos wt

= 0.0340 * cos (2.79 * 6.05)

= -0.0132 m

b) negative x direction

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