P143
Q 1.it means how many meter can object move in 1sec
Q 2 tangential speed is how many meter can the object move in 1sec , and rotational speed means how many turns can you move in 1 minute 
Q 3 imagine that are two people on one line and they want to keep it ,the one on the outside should run faster and this guy will need to run farther then the other one .
P146
Q 1 because there are relation ship between distance and tangential speed , but there are no relation ship between rotation and rotational speed.
Q3 i think it should be equal , but the bigger one of them's tangential speed is twi



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