Question

Which of the following is true?

(a.)Speed limit unless posted on highways 75 MPH
(b.)Speed limit unless posted in city 35 MPH
(c.)Speed limit unless posted outside city 55 MPH

Answer 1

A car traveling at 33 m/s is exceeding the speed limit if the limit is 90 km/h as its speed is equivalent to 118.8 km/h. Speed limits vary and are generally higher on highways and lower within city limits.

Step-by-step explanation:

To convert a speed from meters per second (m/s) to kilometers per hour (km/h), we use the conversion factor that 1 m/s is equivalent to 3.6 km/h. Therefore, a car traveling at 33 m/s would have a speed of:

33 m/s × 3.6 km/h per m/s = 118.8 km/h

This shows that the car is exceeding the 90 km/h speed limit. As far as interstate highways go, a rough average speed limit is 100 km/h. To convert this to meters per second, we divide by 3.6:

100 km/h / 3.6 km/h per m/s = 27.78 m/s (approximately 28 m/s)

To address the different parts of the multi-faceted question posed:
(a) The general speed limit on highways is often higher than 55 MPH unless specifically posted, but the actual limit can vary by jurisdiction.
(b) The general speed limit in cities is typically around 25-35 MPH unless otherwise posted.
(c) The general speed limit outside of cities can be anywhere from 55 MPH to 70 MPH unless posted otherwise, depending on the area and the type of roadway.