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August 23, 2014

August 23, 2014

Posted by **Hena** on Monday, November 8, 2010 at 11:29pm.

A piano is to be slid across the floor.IT had a mass of 450 kg.

A) Calculate the normal force supporting the piano.

B)If the coefficient of static friction between the floor and the piano is 0.35, calculate the minimum amount of force needed to get the piano to move.

C) ONce the piano is moving a horizontal force of 1.1X10^3 N is necessary to keep it moving at a constant speed. Determine the coefficient of kinetic friction.

- Physics Grade 11 -
**Anonymous**, Monday, October 28, 2013 at 11:25pmGood

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