A horizontal net force F is exerted on a 4.0 kg object at rest. The object starts at 2 = 0 m and travels 6.0 m along a horizontal frictionless surface. The net force Fas a function of the object's position 2 is
shown below.
Force (N)
40+
30+
20+
10+
2
Position (m)
1
2
3
4
5
6
7

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.