Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

%3Ch3%20class%3D%22txt-hdr-sec%22%26nbsp%3Bstyle%3D%22margin%3A%26nbsp%3B0px%26n

ID: 2255283 • Letter: #

Question

%3Ch3%20class%3D%22txt-hdr-sec%22%26nbsp%3Bstyle%3D%22margin%3A%26nbsp%3B0px%26nbsp%3B0px%26nbsp%3B15px%3B%26nbsp%3Bpadding%3A%26nbsp%3B0px%3B%26nbsp%3Bborder%3A%26nbsp%3B0px%3B%26nbsp%3Bfont-family%3A%26nbsp%3BHelvetica%2C%26nbsp%3BArial%2C%26nbsp%3Bsans-serif%3B%26nbsp%3Bfont-size%3A%26nbsp%3B16px%3B%26nbsp%3Bline-height%3A%26nbsp%3Binherit%3B%26nbsp%3Bvertical-align%3A%26nbsp%3Bbaseline%3B%26nbsp%3Bcolor%3A%26nbsp%3Brgb(51%2C%26nbsp%3B51%2C%26nbsp%3B51)%3B%22%3E%3Cspan%26nbsp%3Bclass%3D%22chg-suggest-term%22%26nbsp%3Bstyle%3D%22margin%3A%26nbsp%3B0px%3B%26nbsp%3Bpadding%3A%26nbsp%3B0px%3B%26nbsp%3Bborder%3A%26nbsp%3B0px%3B%26nbsp%3Bfont-family%3A%26nbsp%3Binherit%3B%26nbsp%3Bfont-size%3A%26nbsp%3Binherit%3B%26nbsp%3Bfont-style%3A%26nbsp%3Binherit%3B%26nbsp%3Bfont-variant%3A%26nbsp%3Binherit%3B%26nbsp%3Bline-height%3A%26nbsp%3Binherit%3B%26nbsp%3Bvertical-align%3A%26nbsp%3Bbaseline%3B%26nbsp%3Bcolor%3A%26nbsp%3Brgb(240%2C%26nbsp%3B125%2C%26nbsp%3B0)%3B%22%3EA%26nbsp%3Bice%26nbsp%3Bskater%26nbsp%3Bis%26nbsp%3Btraveling%26nbsp%3Bwith%26nbsp%3Ba%26nbsp%3Bspeed%26nbsp%3Bof%26nbsp%3Bin%26nbsp%3Ba%26nbsp%3Bcircle%26nbsp%3Bof%26nbsp%3Bradius%26nbsp%3B.%26nbsp%3BThe%26nbsp%3Bskater%26nbsp%3Bis%26nbsp%3Bheld%26nbsp%3Bin%26nbsp%3Bthe%26nbsp%3Bcircle%26nbsp%3Bby%26nbsp%3Ba%26nbsp%3Brope%26nbsp%3Bheld%26nbsp%3Bby%26nbsp%3Ba%26nbsp%3Bfriend%26nbsp%3Bstanding%26nbsp%3Bat%26nbsp%3Bthe%26nbsp%3Bcenter%26nbsp%3Bof%26nbsp%3Bthe%26nbsp%3Bcircle.%26nbsp%3BIf%26nbsp%3Bthe%26nbsp%3Bfriend%26nbsp%3Bslowly%26nbsp%3Bpulls%26nbsp%3Bin%26nbsp%3Bof%26nbsp%3Bthe%26nbsp%3Brope%2C%26nbsp%3Bwhat%26nbsp%3Bis%26nbsp%3Bthe%26nbsp%3Bresulting%26nbsp%3Bspeed%26nbsp%3Bof%26nbsp%3Bthe%26nbsp%3Bskater%3F%3C%2Fspan%3E%3C%2Fh3%3E

Explanation / Answer

I * w = angualr momentum,,,,so as person moving toward center I decreases which results in in angular sped and increase his speed

I*v/r = I' * V'/r'

I= m*r*r

so above equation can be written as

mrv = m*r'*v'

2.5* 4 = 1.5*v'

v' = 6.667 m/s