Final answer:
Speed limits on highways are not based on the time of day but are set by factors like road conditions and safety concerns. A speed limit of 100 km/h equals 27.78 m/s and about 62 mph. A car traveling at 33 m/s is moving at 118.8 km/h, above the 90 km/h speed limit. correct answer is 4.
Step-by-step explanation:
Understanding Speed Limits on Highways
When considering speed limits on highways, it is generally not true that speed limits are lower during the day and higher at night. In fact, speed limits are typically set by transportation authorities based on various factors including road conditions, traffic patterns, and safety concerns. It is also worth noting that in some places, there may be different speed limits for different types of vehicles or roadway segments, but the time of day typically does not affect these speed limits directly.
To address the conversions mentioned in the question, the speed limit of 100 km/h is equivalent to approximately 27.78 meters per second since 1 km/h is equal to 0.2778 m/s (100 x 0.2778 = 27.78). For miles per hour, since 1 mile is about 1.609 kilometers, 100 km/h translates to about 62 miles per hour after taking the conversion factor into account (100 / 1.609 ≈ 62).
A car traveling at 33 m/s is moving at a speed of 118.8 km/h when converted (33 x 3.6 = 118.8), thereby exceeding the 90 km/h speed limit as referred to in the question. This should clear any doubts regarding whether or not the car is adhering to commonly posted highway speed limits.