Ask questions and get helpful answers.

a 5 kg concrete block accelerates down a 34 degree slope at 4.2m/s^2. Find the coefficient of friction between the block and the slope.

The net force along the slope that produces the acceleration is

F = M g sin 34 - u M g cos 34 = M a
where u is the coefficient of friction.

M cancels out-- you don't need to know it. You can solve for u

I get u = 0.158, but don't trust my math. Check my thinking and do the numbers.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩

2 answers

  1. 50cos34=tu=41.45

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. Student

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Answer this Question

Related Questions

Still need help?

You can ask a new question or browse existing questions.