Question 442609
Towards each other so add up speeds.
80 mph

500 ft = 500/5280 miles

t= d/r

t=(500.5280) /(80)
500 / (5 280 * 80) = 0.00118371212
0.00118371212* 3600 = 4.26 seconds
( 1 hour = 3600 seconds)