Asked by Karen
A ceiling fan is rotating at 0.70 rev/s. When turned off, it slows uniformly to a stop in 2.9 s.
(a) How many revolutions does it make in this time?
(b)Using the result from part (a), find the number of revolutions the fan must make for its speed to decrease from 0.7 rev/s to 0.35 rev/s.
(a) How many revolutions does it make in this time?
(b)Using the result from part (a), find the number of revolutions the fan must make for its speed to decrease from 0.7 rev/s to 0.35 rev/s.
Answers
Answered by
Roger
Part A
using formula:
1/2(0+.7)*(174s)=60.9 for first answer
idk the background but thats is the answer......174 is from converting 2.9 to seconds
1 minute=60 seconds
2 minutes= another 60 seconds
.9 minutes=54 seconds
add the numbers up you get 174
for B i have no clue
using formula:
1/2(0+.7)*(174s)=60.9 for first answer
idk the background but thats is the answer......174 is from converting 2.9 to seconds
1 minute=60 seconds
2 minutes= another 60 seconds
.9 minutes=54 seconds
add the numbers up you get 174
for B i have no clue
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