Answer :
The average speed of the lift is approximately 6.07 miles per hour.
What is the average speed of the lift in miles per hour?
Average speed is expressed mathematically as;
Average Speed = Distance / Time
Given the data in the question;
- Distance = 4806ft = ( 4806/5280)miles = 801/880 miles
- Time = 9min = ( 9/60 )hr = 3/20 hr
- Average speed = ?
Plug in the values into the above equation.
Average Speed = Distance / Time
Average Speed = 801/880 miles ÷ 3/20 hr
Average Speed = 801/880 × 20/3
Average Speed = 267/44 mi/hr
Average Speed = 6.07 mi/hr
Therefore, the average speed of the lift is approximately 6.07 miles per hour.
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