http://www.estiloskateboards.com/reas-complete/
please help with rotational motion?
As Tony the fisherman reAs Tony the fisherman reels in a “big one” he turns the spool on his fishing reel at the rate of 2.2 complete revolutions every second (Figure 10-21).
a) If the radius of the reel is 3.2 cm, what is the linear speed of the fishing line as it is reeled in?
b) How would your answer to part (a) change if the radius of the reel were quadrupled?
the linear speed would increase by a factor of 16
the linear speed would decrease by a factor of 4
the linear speed would increase by a factor of 4
the linear speed would decrease by a factor of 16
http://www.webassign.net/walker/10-21.gif
a) ώ, angular velocity = 2.2 x 2π
= 4.4π rad/s
linear speed = rώ
=3.2 cm x 4.4π
=0.044 m/s
b) linear speed increase by factor of 4. speed is proportional to radius
*hope i’m rite*
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