(2) A 3.64kg block is attached to a horizontal spring and oscillates with angular frequencyof w =7.63rad/s. At t3.71s, the acceleration is a == -5.65m/s² while moving in the%3Dnegative direction. The maximum speed that the block reaches is vmax = 3.99m/s.(a) What is the spring constant of this spring?(b) Write the position as a function of time.(c) What is the position of this block when the potential energy is a third of the kineticenergy.(d) Consider a long rod with the same mass as the block above. If this physical pendulumoscillates about its end with the same angular frequency as above, how long is the pendulum?Note: (I = mL?)

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(a) What is the spring constant of this spring? (b) Write the position as a function of time. (c) What is the position of this block when the potential energy is a third of the kinetic energy.