11. Consider the system shown in Figure 3. Block A weighs 45.0 N and block B weighs 25.0 N. Once block B is set into downward motion, it descends at a constant speed. (a) Calculate the coefficient of kinetic friction between block A and the tabletop. (b) A cat, also of weight 45.0 N, falls asleep on top of block A. If block B is now set into downward motion, what is its acceleration (magnitude and direction)?
11. Consider the system shown in Figure 3. Block A weighs 45.0 N and block B weighs 25.0 N. Once block B is set into downward motion, it descends at a constant speed. (a) Calculate the coefficient of kinetic friction between block A and the tabletop. (b) A cat, also of weight 45.0 N, falls asleep on top of block A. If block B is now set into downward motion, what is its acceleration (magnitude and direction)?
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Assessment 11.
Topic: Newton's Laws of Motion and Applications
Show your complete solutions. Include necessary diagrams.
Transcribed Image Text:11. Consider the system shown in Figure 3. Block A weighs 45.0 N and block B weighs 25.0
N. Once block B is set into downward motion, it descends at a constant speed. (a) Calculate
the coefficient of kinetic friction between block A and the tabletop. (b) A cat, also of weight
45.0 N, falls asleep on top of block A. If block B is now set into downward motion, what
is its acceleration (magnitude and direction)?
A
Figure 3
B
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