Question
Asked Apr 22, 2019
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A student slides her 75.0 kg desk across the level floor of her dormitory room a distance
3.00 m at constant speed. If
coefficient of kinetic friction between the desk and the floor?
she does 500 J of work while sliding the desk, what is the
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A student slides her 75.0 kg desk across the level floor of her dormitory room a distance 3.00 m at constant speed. If coefficient of kinetic friction between the desk and the floor? she does 500 J of work while sliding the desk, what is the

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Expert Answer

Step 1

The student maintained a constant speed. According to Newton’s first law, net force on the desk is zero.

The forces acting on the desk along horizontal direction are the external force and frictional force opposing the motion. Fext = Ff.

The external force applied by the student can be calculated from the work done by him.

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Step 2

 

The coefficient of kinetic friction between di...

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Science

Physics

Newtons Laws of Motion

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