lai (yl8859) – HW21 – Ross – (15200)1Thisprint-outshouldhave8questions.Multiple-choice questions may continue onthe next column or page – find all choicesbefore answering.00110.0 pointsA body oscillates with simple harmonic mo-tion along thex-axis. Its displacement varieswith time according to the equationx(t) =Asin(ω t+φ).IfA= 7 m,ω= 3.313 rad/s, andφ=1.0472 rad, what is the acceleration of thebody att= 3 s? Note: The argument of thesine function is in radians rather than degrees.Answer in units of m/s2.00210.0 pointsA 0.325 kg mass is attached to a spring andundergoes simple harmonic motion with a pe-riod of 0.56 s. The total energy of the systemis 4.4 J.Find the amplitude of the motion.Answer in units of m.003(part 1 of 4) 10.0 pointsA 0.1 kg block attached to a spring of forceconstant 9 N/m oscillates with an amplitudeof 13 cm.Find the maximum speed of the block.Answer in units of m/s.004(part 2 of 4) 10.0 pointsFind the speed of the block when it is 6.5 cmfrom the equilibrium position.
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