A young boy swings a yo-yo horizontally above his head so that the yo-yo has a cen- tripetal acceleration of 250 m/s2.
If the yo-yo’s string is 0.14 m long, what is the yo-yo’s tangential speed?
Answer in units of m/s
1
Expert's answer
2011-10-27T11:18:16-0400
Tangential speed Vt=omega * R
where R=0.14 m - the yo-yo’s string omega - angular velocity of the yo-yo
centripetal acceleration Wc=omega^2 *R => omega=sqrt(Wc/R)=sqrt(250/0.14)=42.25 Hence Vt=omega*R=42.25*0.14=5.91 m/s
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment