| Y google-Yahoo Search Rest ka The Expert TA 1 Human- ·A curve in a road has a
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| Y google-Yahoo Search Rest ka The Expert TA 1 Human- ·A curve in a road has a radi | + X sb06ca ent.aspx Class l Help Homework 5-Ch 6 Begin Date: 222 2018 12:01:00 AM Due Date: 3/6.2018 11 59.00 PM End Date: 3/10 2018i (13%) Problem 1: Microwave ovens rotate at a rate of about 5.2 rev min Randomized Variables f= 5.2 rev min - s» × 50% Part (a) What is this in revolutions per second? sino cotan asinacos0 atan acotansinh0 Degrees O Radians Submit I give up Feedback: 0% deduction Per feedback Hints:--for a-deduction Hints remaining: 0 Do you expect the number of revolutions in a second to be thore os less than the numbes in a minute? 50% Part (b) what is the angular velocity of this microwave in radians per second?Explanation / Answer
The value given is in revolutions/minute and we want to convert it into revolutions/second
Revolutions/minute = Revolutions/ 60 seconds ( Because 1 minute = 60 seconds)
Therefore 5.2 Revs/min = 5.2 Revs/ 60 secs ==> 0.0866 Revolutions/seconds
b) Angle in 1 revolution in radian = 2 pi
Therefore angle rotated in 1 second = 2pi * 0.0866 = 0.544 radian
Hence angular velocity is 0.544 rads/sec
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