Answer: Add the equations to eliminate k
Step-by-step explanation:
Adding the equations, you get 2b=18, which you can solve for b. Afterward, you can substitute this value of b back into either equation to solve for k.
By making the surface rougher and to increase the force pushing the surfaces together.
2. Sorry if I’m wrong but that’s what I just put
178÷2 is 89
Hope this was helpful!