A 115kg football player moves a 135 kg training sled with a constant velocity. The ground has a u = 0.4. Circle the 3rd Law pair between the two objects. 2) Determine the amount of traction the football player has. ​

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?