Question

The function x = (2.5 m) cos[(5π rad/s)t + π/5 rad] gives the simple harmonic motion...

The function x = (2.5 m) cos[(5π rad/s)t + π/5 rad] gives the simple harmonic motion of a body. Find the following values at t = 7.0 s.

(a) the displacement
m

(b) the velocity (Include the sign of the value in your answer.)
m/s

(c) the acceleration (Include the sign of the value in your answer.)
m/s2

(d) the phase of the motion
rad

(e) the frequency of the motion
Hz

(f) the period of the motion
s

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