3.A car leaves an intersection traveling west. Its position 4 sec later is 26 ft from the intersection. At the same time, another car leaves the same intersection heading north so that its position 4 sec later is 20 ft from the intersection. If the speeds of the cars at that instant of time are 8 ft/sec and 12ft/sec, respectively, find the rate at which the distance between the two cars is changing. Round to the nearest tenth if necessary. Select the correct answer. 1. 13.7 ft/sec 2. 2.7ft/sec 3. 4.1 ft/sec 4. 32.8 ft/sec