Physics, 21.09.2019 20:10 claudiam1106
A. question: jessica stretches her arms out .6 m from the center of her body while holding a 2 kg mass in each hand. she then spins around on an ice rink at 1.1 m/s. what is the combined angular momentum of the masses?
work: for this question, i got l =2.64 kg*m^2/s. is this right?
b. question: if she pulls her arms in to 0.15 m, what is her linear speed if the angular momentum remains constant?
work: this is the equation i used, l/(m)(r^2)
which would make l= 2.64 from previous question. r= .15 m. m= 2 kg. v2= unknown
substitution:
v2= 2.64/(.15)(2)(2) is this step right?
what is the linear speed? (i tried to show all my work, so, you know where i got stuck.)
Answers: 2
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A. question: jessica stretches her arms out .6 m from the center of her body while holding a 2 kg m...
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