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(b) The man is going to exit the stairwell at the 4th floor, which is at a height of 42 feet above
ground level. Let t be equal to the number of second it takes for him to get to the 4th floor.
Set up and solve an equation to find the value of t. Round your answer to the nearest tenth
of a second.

Respuesta :

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The time taken to get to the 4th can be obtained by dividing the distance given by the speed of the lift.

Distance, height from ground to 4th floor = 42 feets

Time taken to get to the 4th floor = t

Recall :

Time = Distance / speed

  • We aren't given the speed of the lift ;

  • Assume speed of lift is 7 ft/sec

The time taken to get to the 4th floor will be :

  • [tex]t = \frac{42}{7} = 6 \: seconds[/tex]

Therefore, to obtain the time taken, divide the distance or height of the 4th floor by the speed of the lift.

Learn more : https://brainly.com/question/13218948

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