To determine which vehicles are safely obeying the 55 mph speed limit, we need to calculate the speed of each vehicle. The speed can be calculated using the formula:
\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]
We'll calculate the speed for each vehicle:
-
Limousine:
- Distance = 318 miles
- Time = 6 hours
- Speed = \( \frac{318 \text{ miles}}{6 \text{ hours}} = 53 \text{ mph} \)
-
Ambulance:
- Distance = 150 miles
- Time = 2 hours
- Speed = \( \frac{150 \text{ miles}}{2 \text{ hours}} = 75 \text{ mph} \)
-
School Bus:
- Distance = 162 miles
- Time = 3 hours
- Speed = \( \frac{162 \text{ miles}}{3 \text{ hours}} = 54 \text{ mph} \)
-
Sports Car:
- Distance = 216 miles
- Time = 4 hours
- Speed = \( \frac{216 \text{ miles}}{4 \text{ hours}} = 54 \text{ mph} \)
-
Train:
- Distance = 182 miles
- Time = 2 hours
- Speed = \( \frac{182 \text{ miles}}{2 \text{ hours}} = 91 \text{ mph} \)
Now we can see which of these speeds are at or below 55 mph:
- Limousine: 53 mph (obeying speed limit)
- Ambulance: 75 mph (not obeying speed limit)
- School Bus: 54 mph (obeying speed limit)
- Sports Car: 54 mph (obeying speed limit)
- Train: 91 mph (not obeying speed limit)
The vehicles safely obeying the 55 mph speed limit are:
- Limousine
- School Bus
- Sports Car
So the selected vehicles are:
- A limousine travels 318 miles in 6 hours.
- A school bus travels 162 miles in 3 hours.
- A sports car travels 216 miles in 4 hours.
1 answer