Question

doua roti de raze R1=10 cm si R2=20 cm sunt angrenate printr-o curea inextensibila si se rotesc uniform. Stiind ca rosta 2 se invarteste cu 3000 de turatii/minut, sa se determine frecventa de rotatie a roti 1

Answer 1

v2=3000 rot/min=50 Hz

w2=2piv2=100 pi rad/s

R1w1=R2w2<=>10w1=2000 pi=>w1=200pi

w1=2piv1=>v1=w1/2pi=200pi/2pi=100 Hz