Answer:
You are 11.5 feet off the floor are you in 5 minutes
You are 23 feet off the floor are you in 10 minutes
it will take 13.91 minutes to reach the ground
Explanation:
If you are top , height will keep decreasing as you move downward.
Given
top height 32 feet
Descending speed = -2.3 feet /minute
Here negative sign implies that height is decreasing.
concept used
distance = speed * time
How many feet off the floor are you in 5 minutes?
time = 5 minutes
distance descended = -2.3 feet /minute*5 minutes = - 11.5 feet
Hence ,
I would have moved 11.5 feet from the top.
Distance from ground will be = Top height - distance descended
Distance from ground will be = 32 - 11.5 = 20.5 feet
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How many feet off the floor are you in 10 minutes
distance descended = -2.3 feet /minute*10 minutes = - 23 feet
Hence ,
I would have moved 23 feet from the top.
Distance from ground will be = Top height - distance descended
Distance from ground will be = 32 - 23= 9 feet
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When you reach the ground distance descended will be 32 feet.
Since its a descend distance off the floor has to be taken as negative value
Thus, distance descend in this case will be -32 feet
-32 feet= -2.3 feet /minute*Time
Time = -32/-2.3 = 13. 91 minutes.
Thus, it will take 13.91 minutes to reach the ground.