Physics, 23.10.2019 17:30 serverdang02

Acar leaves an intersection traveling west. its position 4 sec later is 21 ft from the intersection. at the same time, another car leaves the same intersection heading north so that its position 4 sec later is 28 ft from the intersection. if the speeds of the cars at that instant of time are 9 ft/sec and 13 ft/sec, respectively, find the rate at which the distance between the two cars is changing.

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Acar leaves an intersection traveling west. its position 4 sec later is 21 ft from the intersection....

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