Multiple Choice
A system comprised blocks,a light frictionless pulley,and connecting ropes is shown in the figure.The 9.0-kg block is on a perfectly smooth horizontal table.The surfaces of the 12-kg block are rough,with between the block and the table.If the 5.0-kg block accelerates downward when it is released,find its acceleration.
A) 1.0 m/s2
B) 1.2 m/s2
C) 1.4 m/s2
D) 1.6 m/s2
E) 1.8 m/s2
Correct Answer:

Verified
Correct Answer:
Verified
Q35: Block A of mass 8.0 kg and
Q36: A car enters a 300-m radius horizontal
Q37: In the figure,two wooden blocks each of
Q38: If you swing a bucket of water
Q39: Two objects have masses m and 5m,respectively.They
Q41: A pickup truck is moving at 25
Q42: An 80.0-kg object is falling and experiences
Q43: A rope pulls on the lower block
Q44: A traffic light weighing 100 N is
Q45: A 60.0-kg person rides in elevator while