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The figure below shows a rectangular block of wood attached to a spring balance being pulled gently by a pulling force P at a steady...

      

The figure below shows a rectangular block of wood attached to a spring balance being pulled gently by a pulling force P at a steady velocity.
pic11920191319.png
i. A graph of pulling force against time was drawn as shown below.
pic11920191321.png
I. State the forces FA and FB.
II. From the graph, state what happens to the block of wood between point P and Q. (1mk)
ii. Given that the wooden box has a mass of 2.0kg and requires force of 5N to pull it with uniform speed along a horizontal surface, calculate the coefficient of friction between the surface and the block. Take (g = 10N/kg).

  

Answers


sharon
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sharon kalunda answered the question on September 11, 2019 at 10:25


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