Solution Found!
Solved: The pulley in Fig. P9.76 has radius 0.160 m and
Chapter 9, Problem 84P(choose chapter or problem)
The pulley in Fig. P9.84 has radius \(0.160 \mathrm{~m}\) and moment of inertia
\(0.560 \mathrm{~kg} \cdot \mathrm{m}^{2}\) The rope does not slip on the pulley rim. Use energy methods to calculate the speed of the \(\text { 4.00-kg }\) block just before it strikes the floor.
Equation Transcription:
Text Transcription:
0.160 m
0.560 kg dot m^2
4.00- kg
4.00 kg
5.00 m
2.00 kg
Questions & Answers
QUESTION:
The pulley in Fig. P9.84 has radius \(0.160 \mathrm{~m}\) and moment of inertia
\(0.560 \mathrm{~kg} \cdot \mathrm{m}^{2}\) The rope does not slip on the pulley rim. Use energy methods to calculate the speed of the \(\text { 4.00-kg }\) block just before it strikes the floor.
Equation Transcription:
Text Transcription:
0.160 m
0.560 kg dot m^2
4.00- kg
4.00 kg
5.00 m
2.00 kg
ANSWER:
Solution 84P
Step 1:
Initially all the blocks and the pulley were not moving, so the total energy of the system was only the potential energy of the block of mass 4 kg at a height of 5 meters.
The total energy was,
.