Final answer:
The direct route from a place of residence to a place of work by means of a private vehicle, including all travel aboard DOD-owned/controlled aircraft, is referred to as a commute. The term 'motorcade' refers to the convoy of vehicles that transports the president to various locations. The travel time for the president's helicopter, Marine 1, to travel from directly above the White House landing zone to directly above the Lincoln Memorial landing zone is calculated by dividing the distance by the speed.
Step-by-step explanation:
The direct route from a place of residence to a place of work by means of a private vehicle, including all travel aboard DOD-owned/controlled aircraft, is referred to as a commute. A commute is the regular journey that individuals make between their home and workplace. It can involve traveling on roads or using public transportation, such as DOD aircraft.
In the given context, the term 'motorcade' refers to the convoy of vehicles that transports the president to various locations. The minimum speed needed for the president's motorcade to reach the concert from the White House in 5 minutes cannot be determined without additional information, such as the distance to be covered.
The travel time for the president's helicopter, Marine 1, to travel from directly above the White House landing zone to directly above the Lincoln Memorial landing zone can be calculated by dividing the distance by the speed. At a constant speed of 30 mph, the travel time would be 2 minutes. However, it is important to note that this calculation disregards liftoff and landing times.