A 0.50 kg object is attached to a spring with force constant 169 N/m so that the object is allowed to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.14 m. (a) Find the force on the object. 23.66 N (b) Find its acceleration at that instant 33.6 Your response differs from the correct answer by more than 10%. Double check your calculations. m/s