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A block of mass m is at rest under the action of force F against a wall as shown in figure. Which of the

A block of mass m is at rest under the action of force F against a wall as shown in figure. Which of the following statement is incorrect? (a) f = mg [where fis the frictional force] (b) F = N [where N is the normal force] (c) F will not produce torque (d) N will not produce torque F

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