Question

In 1980, over San Francisco Bay, a large yo-yo was released from a crane. Suppose the yo-yo was 195 kg, and it consisted of two uniform disks of radius 37.2 cm connected by an axle of radius 3.72 cm. What was the magnitude of the acceleration of the yo-yo during (a) its fall and (b) its rise? (c) What was the tension in the cord on which it rolled?

Answer 1

The yo yo has rass 195 k9 ,uniforn disk of odius 31.2cm ad arde aadius 372cm Parta The linear occelexation For a-q0 is given by _g 1Icon 1+R2 2R2 a.8ms 1(0. 32m '(0,0342 m) a a 0.192m/s2 Partb Far Y- to acceleratiom vhen it's clmbing up the downwad occelenation eguel Patc New tons scond law T- Mg = Ma T Mgta) 95 kga.8-0.192 T: [५५8.५२ N