Convert 140 km/h to mph.
Answer
To convert 140 km/h to mph, divide 140 by 1.60934, resulting in approximately 87.0 mph. This conversion involves using the relationship between kilometers and miles. The answer rounded to three significant figures is 87.0 mph.
Explanation
To convert 140 kilometers per hour (km/h) to miles per hour (mph), you can use the conversion factor that 1 mile is approximately equal to 1.60934 kilometers. Here are the steps to make the conversion: Start with the speed in kilometers per hour: 140 km/h Use the conversion factor to convert kilometers to miles. The formula to convert is as follows: mph = (km/h)/1.60934 Plug in the value: mph = 140/1.60934≈86.9926 Round the result to an appropriate number of significant figures. Since 140 has three significant figures, we can round it: mph≈87.0 Therefore, 140 kilometers per hour is approximately 87.0 miles per hour.