Energy in a spring-mass system A horizontal spring-mass system has low friction, spring stiffness 180 N/m, and mass 0.5 kg. The system is released with an initial compression of the spring of 9 cm and an initial speed of the mass of 3 m/s. (a) What is the maximum stretch during the motion? (b) What is the maximum speed during the motion? m/s (c) Now suppose that there is energy dissipation of 0.01 J per cycle of the spring-mass system. What is the average power input in watts required to maintain a steady oscillation? watt

A mass of 0.75 kg is suspended from a spring. If 1.41 J of work is done against the spring as the mass is pulled 0.15 m away from its equilibrium position, what is the spring constant of the spring?

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Question 7 m 0Q000 -Xo +Xo A block of mass m is on a rough horizontal surface and is attached to a spring with spring constant k. The coefficient of kinetic friction between the surface and the block is u. When the block is at position a = 0, the spring is at its unstretched length. The block is pulled to position I = +x0, as shown above, and released from rest. The block then travels to the left and passes through a = 0 before coming momentarily to rest at position a = Which of the following is a correct expression for the kinetic energy of the block as it first travels through position a=0? ka umgro