A ceiling fan has a diameter ( of the circle through the outer edges of the three blades ) of 120 cm & rpm 1500 at full speed. Considera particle of mass 1 g sticking at the outer end of a blade. How much force does it experience when the fanruns at full speed ? Who exerts this force on the particle ? How much force does the particle exert on the blade along its surface ?
Deepak Patra , 11 Years ago
Grade upto college level
1 Answers
Suparshwa Patil
Last Activity: 8 Years ago
Diameter=120 cmTherefore, radius=60cm=0.6mRpm(n)=1500 Therefore revolution per second=1500/60=25Omega(w)=2pien=2*3.14*25=157 rads/secForce=mw^2r=0.001*157*157*0.6=14.8N
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