Two cars leave from Minneapolis. Car A leaves at 12 pm, exactly 1 hr 30 mins before car B. However Car A drives at a constant speed of 60 mph, while car B drives at a constant speed of 75 mph. Let d = the distance from Minneapolis in miles, and t = the time in hours after 12 pm.

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.