a helicopter blade spins 775 times in 3 minutes. find the rate of the revolutions per second.
Enough, Jessica!!
The question asks for the revolutions per second, not per minute.
3 * 60 = 180 seconds in three minutes.
775/180 = ______ revolutions per second.
there are 180 seconds in3 minutes
so the number of revolutions/sec = 775/180
= appr 4.3 rotations/sec
divide 775 by 3
4.3 rps
To find the rate of revolutions per second, you need to convert the given units of minutes into seconds. Here's how you can do it:
Step 1:
Given that the helicopter blade spins 775 times in 3 minutes.
Step 2:
To convert minutes into seconds, multiply the number of minutes by 60.
3 minutes x 60 seconds/minute = 180 seconds
Step 3:
Now, you have the number of revolutions (775) and the time in seconds (180). To find the rate of revolutions per second, divide the number of revolutions by the time in seconds.
Rate = Number of revolutions / Time in seconds
Rate = 775 revolutions / 180 seconds ≈ 4.306 revolutions per second
Therefore, the rate of revolutions per second for the helicopter blade is approximately 4.306.