A block of mass m in the equilib rium on a rough inclined plane with inclination alpha and coefficient of friction as shown in the figure (mu < tan alpha). A force F is applied on the block which makes an angle theta with the horizontal as shown in diagram.

A block of mass m in the equilib rium on a rough inclined plane with i

1.	A block of mass m in the equilib rium on a rough inclined plane with inclination alpha and coefficient of friction as shown in the figure (mu < tan alpha). A force F is applied on the block which makes an angle theta with the horizontal as shown in diagram.
Answer» Normal FORCE on the block `mg COS alpha+ F sin theta`. Minimum force f to KEEP the blockin equilibrium `F_("min")=(mg(sin alpha- mu cos alpha))/(2MU) SQRT(1+mu^(2))` `mu=tan theta` None of these Answer :A::C

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A block of mass m in the equilib rium on a rough inclined plane with inclination alpha and coefficient of friction as shown in the figure (mu < tan alpha). A force F is applied on the block which makes an angle theta with the horizontal as shown in diagram.

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