Three vectors A, B, and E are shown above. The mass on hanger A047, ma-25grams, the mass du (3), ma is 130grams and the mass on hanger E(237), me is 190grams. The friction between the string pulleys can be ignored. 1) What resultant force F is necessary to balance the ring at the center of the table? A) 2.84N, 0-48 B) 0.14N, 0-215 C) 0.73N, 0210 D) 1.88N, 0-190 E) None of the ahove

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Three vectors A, B, and E are shown above, The mass on hanger A (347), ma- 25grams, the mass on hange
B (63), mn is 130grams and the mass on hanger E(237), mr is 100erams. The friction between the strings
pulleys can be ignored.
1) What resultant force F is necessary to balance the ring at the center of the table?
A) 2.84N, 0 = 48
B) 0.14N, 0-215
C) 0.73N, 0=210
D) 1.88N, 0- 190°
E) None of the above
2) The mass on hanger F, my-
A) 284grams
B) 14grams
C) 73grams
D) 188grams
E) None of the above
3) Find the cross product of vectors A and B (ignore the units).
A) 0.324k
B) 1.2251
C) -2.225j
D) 0.0981
E) None of the above
347° 830
4) Find the dot product between vectors B, and E (ignore the units).
A) 2.55
B) -2.22
C) 4.14
D) -1.33
E) None of the above
5) Suppose wire E breaks, what will the magnitude and acceleration of the ring be if the mass of thc ring
miar =90grams. The coefficient of static friction is us - 0.4 and the coefficient of kinetic friction u
0.15 between the ring and the surface.
A) -12.28 mis
B) 2.50 m/s
C) 1.44 m/s?
D) 4.1 Im/s
E) None of the above
Transcribed Image Text:Three vectors A, B, and E are shown above, The mass on hanger A (347), ma- 25grams, the mass on hange B (63), mn is 130grams and the mass on hanger E(237), mr is 100erams. The friction between the strings pulleys can be ignored. 1) What resultant force F is necessary to balance the ring at the center of the table? A) 2.84N, 0 = 48 B) 0.14N, 0-215 C) 0.73N, 0=210 D) 1.88N, 0- 190° E) None of the above 2) The mass on hanger F, my- A) 284grams B) 14grams C) 73grams D) 188grams E) None of the above 3) Find the cross product of vectors A and B (ignore the units). A) 0.324k B) 1.2251 C) -2.225j D) 0.0981 E) None of the above 347° 830 4) Find the dot product between vectors B, and E (ignore the units). A) 2.55 B) -2.22 C) 4.14 D) -1.33 E) None of the above 5) Suppose wire E breaks, what will the magnitude and acceleration of the ring be if the mass of thc ring miar =90grams. The coefficient of static friction is us - 0.4 and the coefficient of kinetic friction u 0.15 between the ring and the surface. A) -12.28 mis B) 2.50 m/s C) 1.44 m/s? D) 4.1 Im/s E) None of the above
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