PHYS 210 Final, Spring 2008
American University of Beirut · Introductory Physics II · 1 page
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24
Marks: 4
Block A of mass 5.0 Kg and a block X (unknown mass) are attached to a rope which passes over a frictionless
pulley. A force P=80 N is applied horizontally as shown in the figure below keeping the block A in contact with the
rough vertical wall having a coefficient of friction m,=0.30. The mass X is set such that the block A moves with an
acceleration of 1.6 m/s? . The mass of the block X is closest to ?.(g=9.8 m/s2 )
VL
v
'ZA
Choose one answer. © a.99Kg ¥
b.8.1Kg x
c. 8.7 Kg
d.75Kg
e93Kg x
Correct
Marks for this submission: 4/4.