Question

Usain Bolt's average speed is 35 miles/hour. Convert his speed to feet/second. A. 51.47 feet/second B. 61.33 feet/second C. 75.47 feet/second D. 92.27 feet/second

Answer 1

Usain Bolt's speed is converted from miles per hour to feet per second by multiplying miles by 5280 to get feet, dividing the seconds in an hour to convert hours to seconds, and then dividing total feet by total seconds, resulting in 51.33 feet/second.

so the correct answer is A

Step-by-step explanation:

To convert Usain Bolt's average speed from miles per hour to feet per second, you need to know the following conversions: 1 mile is equal to 5280 feet, and 1 hour is equal to 3600 seconds. Thus, to convert 35 miles/hour to feet/second, you follow these steps:

1. Convert miles to feet: 35 miles × 5280 feet/mile = 184,800 feet.
2. Convert hours to seconds: 1 hour × 3600 seconds/hour = 3600 seconds.
3. Divide the total feet by the total seconds: 184,800 feet / 3600 seconds = 51.33 feet/second.

So, the correct answer is (A) 51.47 feet/second.