Could you please help me with all the blanks here (Both steps and fianl values)?
ID: 1775815 • Letter: C
Question
Could you please help me with all the blanks here (Both steps and fianl values)??? Including the correct two. Thank you so much!!!
4/8 points | Previous Answers My Notes Ask Your Teacher A barbell consists of two massive balls connected by a low-mass rod. The barbell slides across a low-friction icy surface, spinning as it moves, as shown in the diagram. The mass m of each ball is 0.5 kg. The distance d between the centers of the balls is 0.33 m. The speed v of the center of mass of the barbell is 0.73 m/s, and the barbell makes one complete revolution in 3 seconds. What is the translational kinetic energy of the barbell? Ktrans 0.266 Considering only the motion of the barbell relative to its center of mass, what is the speed of one ball as it rotates around the center of the barbell? vrot = 10.346 What is the rotational kinetic energy of the barbell (This is the kinetic energy associated with motion relative to the center of mass.) Krot What is the total kinetic energy of the barbell? m/sExplanation / Answer
K_trans = ½*m*v²
K_trans = 0.5*(1 kg)*(0.73 m/s)2
K_trans = 0.266 J
v_rot = *d/t
v_rot = 3.14*(0.33 m)/3
v_rot = 0.346 m/s
I = 0.5*0.2252 = 0.0253125 kg-m2
for both mass
I = 0.0253125 kg-m2*2
I = 0.050625 kg-m2
w = 2*3.14/3
w = 2.09333
K_rot = 0.5*0.050625*2.093332
K_rot = 0.1109 J
K_tot = K_trans + K_rot
K_tot = 0.266 J + 0.1109 J
K_tot = 0.377 J
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