Assume that the stopping distance of a van varies directly with the square of the speed. a van traveling 40 miles per hour can stop in 70 feet. if the van is traveling 48 miles per hour, what is its stopping distance?

d = 100.8 ft

Explanation:

As we know that initial speed of the van is 40 miles then the stopping distance is given as 70 feet

here we know that

so here we have

now again if the speed is increased to 48 mph then let say the stopping distance is "d"

so we will have

now divide the above two equations

i would say the answer is food.

hope this !