ke Test. Test10-Ch10- × acc.blackboard.com/webapps/assessment/take/launch.jsp?co

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ke Test. Test10-Ch10- × acc.blackboard.com/webapps/assessment/take/launch.jsp?course assessment id- 229979 1&course; id-53725 18&content; id-2741714 18 QUESTION 6 An 0.80-kg object is attached to one end of a spring and the system is set into simple harmonic motion. The displacement x of the object as a function of time is shown in the drawing. With the aid of these data, determine (a) the angular frequency w,b) the spring constant k, (c) the maximum speed of the object, and (d) the magnitude of the object's acceleration att 2.0 s x (m) 0.060 4.0 8.0 6.0Time (s) -0.060

Explanation / Answer

a) w= 2*pi/T= 2* 3.14/8= 0.785 rad/s

b) k=m*w^2= 0.8* (0.785)^2= 0.493 N/m

C) max speed,v= Aw= 0.06*0.785= 0.0471 m/s

D)a=Aw^2 cos( wt)= 0.06*(0.785)^2* cos (2*0.785)= 2.944*10^-5 m/s^2

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