A block of weight W rests on horizontal floor with coefficient of static friction mu . It is desired to make the block move by applying minimum amount of force. The angle theta from the horizontal at which the force should be applied and the magnitude F of the force is

A block of weight W rests on horizontal floor with coefficient of stat

1.	A block of weight W rests on horizontal floor with coefficient of static friction mu . It is desired to make the block move by applying minimum amount of force. The angle theta from the horizontal at which the force should be applied and the magnitude F of the force is
Answer» `THETA = 0, F= mu W` `theta = tan^(-1) (mu), F = (mu W)/(sqrt(1 + mu^2))` `theta = tan^(-1) (1/mu), F = (mu W)/(sqrt(1 + mu^2))` `theta = tan^(-1)((mu)/(1 + mu)) , F = (mu W)/(1 + mu^2)` ANSWER :B

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A block of weight W rests on horizontal floor with coefficient of static friction mu . It is desired to make the block move by applying minimum amount of force. The angle theta from the horizontal at which the force should be applied and the magnitude F of the force is

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