How to solve for coefficent of friction

Categorize The block is pulled by a force and the surface is rough, so the block and the surface are modeled as ---Select-- |system with a nonconservative force. A Block Pulled on a Rough Surface A 5.0 kg block initially at rest is pulled to the right along a horizontal surface by a constant horizontal force of Analyze Figure (a) illustrates this situation. Neither the normal force nor the gravitational force does work on the system because their points of application are displaced horizontally. 21 N. Find the work done on the system by the applied force (Use the following as necessary: F and Ax.): (a) A block pulled to the right on a rough SWother forces- W. surface by a constant horizontal force. Apply the particle in equilibrium model to the block in the vertical direction (Use the following as necessary: F, Ax, m, and g.): ▼ mg Efy =0-n - mg = 0 → n = (b) The applied force is at an angle o to the Find the magnitude of the friction force (in N): horizontal. Substitute the energies…

no, i want to solve for the coefficient of static friction

Researchers have found that a gecko’s foot iscovered with hundreds of thousands of small hairs (setae) thatallow it to walk up walls and even across ceilings. A single foot pad,which has an area of 1.0 cm2, can attach to a wall or ceiling with aforce of 11 N. (a) How many 250-g geckos could be suspended fromthe ceiling by a single foot pad? (b) Estimate the force per squarecentimeter that your body exerts on the soles of your shoes, andcompare with the 11 N>cm2 of the sticky gecko foot.