Posted by **Anonymous** on Thursday, January 17, 2013 at 1:24am.

011 (part 1 of 5) 10.0 points

Two objects are connected by a string of negligible mass. The 12 kg block is placed on a

smooth table top 2.4 m above the ﬂoor, and

the 9 kg block hangs over the edge of the table. The 9 kg block is then released from rest

at a distance of 1.2 m above the ﬂoor at time

t = 0.

12 kg

9 kg

2.4 m

1.2 m

Determine the acceleration of the 9 kg block

as it descends. The acceleration of gravity is

9.8 m/s

2

.

Answer in units of m/s

2

How long dies it take the 9 kg block to strike

the ﬂoor?

Answer in units of s

013 (part 3 of 5) 10.0 points

Describe the motion of the 12 kg block from

the time t = 0 to the time when the 9 kg block

strikes the ﬂoor.

1. It moves with a decreasing acceleration.

2. It moves with an increasing acceleration.

3. It moves with a constant acceleration.

4. It moves with a constant speed.

5. It stays still.

014 (part 4 of 5) 10.0 points

Describe the motion of the 12 kg block from

the time the 9 kg block strikes the ﬂoor to the

time the 12 kg block leaves the table.

1. It stays still.

2. It moves with a constant speed.

3. It moves with a decreasing acceleration.

4. It moves with a constant acceleration.

5. It moves with an increasing acceleration.

015 (part 5 of 5) 10.0 points

Determine the distance between the landing

points of the two blocks.

Answer in units of m

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