MY NOTES A 0.62 kg mass is attached to a light spring with a force constant of 30.9 N/m and set into oscillation on a horizontal frictionless surface. If the spring is stretched 5.0 cm and released from rest, determine the following. (a) maximum speed of the oscillating mass 688 X See if you can find an expression which relates the maximum speed of the oscillating mass to known values, m/s (b) speed of the oscillating mass when the spring is compressed 1.5 cm m/s (c) speed of the oscillating mass as it passes the point 1.5 cm from the equilibrium position m / s (d) value of x at which the speed of the oscillating mass is equal to one-half the maximum value m Supporting Materials Physical ConstantsDETAILS PREVIOUS ANSWERS MY NOTES A child bounces in a harness suspended from a door frame by three elastic bands. (a) If each elastic band stretches 0.290 m while supporting a 7.95-kg child at rest, what is the force constant for each elastic band? Assume that each spring supports 1/3 of the child's weight. 89.21 N/m (b) What is the time for one complete bounce of this child? (c) What is the child's maximum velocity if the amplitude of her bounce is 0.290 m? .970 X How is the maximum kinetic energy of the child related to the maximum potential energy of the three elastic bands? m/s