A block lies on a floor.(a) What is the magnitude of the frictional force on it from the floor? (b) If a horizontal force of 5 N is now applied to the block,but the block does not move,what is the magnitude of the frictional force on it? (c) If the maximum valuefs,max of the static frictional force on the block is 10N,will the block move if the magnitude of the horizontally applied force is 8 N? (d)If it is 12 N? (e) What is the magnitude of the frictional force in part (c)?
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Since there is no applied force, there is no force of friction. (b) Force of friction is a self-adjusting force. During the stationary state, it is equal to the applied force. Hence the magnitude of frictional force on it is 5 N.
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Explanation:
Answer:
Since there is no applied force, there is no force of friction. (b) Force of friction is a self-adjusting force. During the stationary state, it is equal to the applied force. Hence the magnitude of frictional force on it is 5 N.
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