Question 8: A horizontal external force F is applied to block of mass 3m so that it moves horizontally as shown in Figure 4. The coefficient of friction force between the block of mass 4m and the ground is 3µ while the coefficient of friction force between the blocks is u (g is the gravitational acceleration.). Find the acceleration of block of mass 3m relative to the ground. F 3M 4M 3µ Figure 4 Select one: F – 9µMg 3M F - 3µMg 3M 2F – 18µMg 3M F- 18μg 6M 2F-21μMg 6M

College Physics
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Chapter1: Units, Trigonometry. And Vectors
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Question 8: A horizontal external force F is applied to block of mass 3m so
that it moves horizontally as shown in Figure 4. The coefficient of friction force
between the block of mass 4m and the ground is 3u while the coefficient of
friction force between the blocks is u (g is the gravitational acceleration.). Find
the acceleration of block of mass 3m relative to the ground.
-> µ
3M
4M
3µ
Figure 4
Select one:
F - 9µMg
3M
F - 3µMg
3M
2F – 18µMg
3M
F- 18μMg
6M
2F – 21µMg
6M
Transcribed Image Text:Question 8: A horizontal external force F is applied to block of mass 3m so that it moves horizontally as shown in Figure 4. The coefficient of friction force between the block of mass 4m and the ground is 3u while the coefficient of friction force between the blocks is u (g is the gravitational acceleration.). Find the acceleration of block of mass 3m relative to the ground. -> µ 3M 4M 3µ Figure 4 Select one: F - 9µMg 3M F - 3µMg 3M 2F – 18µMg 3M F- 18μMg 6M 2F – 21µMg 6M
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