Using the formula d = rt, calculate the distance a car would travel at 80 mph for 2.5 hours.

Using the formula,

Here, d is distance, v is the velocity and t is time.

Given, and .

Substituting these values in above formula, we get

Thus, the distance traveled by the car is 200 miles

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach