Physics

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A wooden block slides directly down an incline plane at a constant velocity of 6 m/s. What is the coefficient of kinetic friction if the plane makes an angle of 30 degrees with the horizontal?

the coefficient of kinetic friction = force of kinetic friction/normal force. How would i solve this problem? i am only given velocity and the angle. I can't figure out the equation for this problem. Thanks in advance for your help.

  • Physics -

    The downward force along the plane is mg*sin30. If the block is at constant velocity, then this must equal friction force.Friction force is mu*mg*cos30

    mu*mg*cos30=mgsin30

    mu= tan 30

  • Physics -

    An object of mass 20kg slides down an inclined plane at an angle of 30degrees to the horizontal. The coefficient of static friction is what?

  • Physics -

    10 ms

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