On a rough table, three blocks are placed as shown in the figure. Mass of each block is m and coefficient of friction for each block is μ. A force F is applied on the first block so as to move the system. The minimum value of F=y μ m g . Find y .

Question

On a rough table, three blocks are placed as shown in the figure. Mass of each block is m and coefficient of friction for each block is μ. A force F is applied on the first block so as to move the system. The minimum value of F=y μ m g . Find y . (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Tension T3 required to move third block =μ m g. Tension T2 to move 2 text nd block =3 μ m g . Force F required to move the first block =7 μ mg.

Q. On a rough table, three blocks are placed as shown in the figure. Mass of each block is $m$ and coefficient of friction for each block is $μ$ . A force $F$ is applied on the first block so as to move the system. The minimum value of $F = y μ m g .$ Find $y .$

Tension $T_{3}$ required to move third block $= μ m g$ .
Tension $T_{2}$ to move $2^{nd}$ block $= 3 μ m g .$
Force $F$ required to move the first block $= 7 μ m g$ .

Q. On a rough table, three blocks are placed as shown in the figure. Mass of each block is m and coefficient of friction for each block is μ. A force F is applied on the first block so as to move the system. The minimum value of F=yμmg. Find y.

Tension T3​ required to move third block =μmg. Tension T2​ to move 2nd block =3μmg. Force F required to move the first block =7μmg.

Q. On a rough table, three blocks are placed as shown in the figure. Mass of each block is $m$ and coefficient of friction for each block is $μ$ . A force $F$ is applied on the first block so as to move the system. The minimum value of $F = y μ m g .$ Find $y .$

Tension $T_{3}$ required to move third block $= μ m g$ .
Tension $T_{2}$ to move $2^{nd}$ block $= 3 μ m g .$
Force $F$ required to move the first block $= 7 μ m g$ .