Suppose that you have a certain spring to which you add weights. The spring does not stretch until you add 10 N, but it then stretch 10 cm for every 100 grams that you add. What is the equilibrium weight W0 of this scale, in newtons? The equilibrium weight of this spring is N.

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.