A ventilation fan has blades 0.25 m in radius rotating at 20 revolutions per minute. What is the linear speed of each blade tip?

Group of answer choices

a. 0.79 m/s

b. 0.52 m/s

c. 0.26 m/s

d. 1.0 m/s

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I have to solve this problem in explained manner step by step here. here radius r =0.25 and total no. of revolution = 20. and Distance = 2*pi*r*no. of revolution then we get linear speedof blade.   The ralues frovicted in the question are as folloes. radiun of fom blade is 0.25le. r=0.25.the number of reralution =20Io\begin{aligned}\text { Nes, totes Distenc }= & 2 \pi r \times \text { no }=f \\& \text { revolution } \\= & 2 \pi 2 \times 3.14 \times 0.25 \times 20\end{aligned}rinoLincar speed of blecle for is\begin{aligned}u & =\frac{\operatorname{sintance}}{\sin a} \\& =\frac{2 \times 3.14 \times 0.25 \times d \phi}{6 \phi} \\& =\frac{1.57}{3} \\& =0.523333 \\& \approx 0.52 \mathrm{~m} / \mathrm{s} .\end{aligned} ...