Physics

1. If a 30kg object experiences a normal force of 210N when traveling down a ramp, what is the angle of incline? Also, calculate the force of friction and the coefficient of friction.

Answers: μ(mu)=0.98
Θ=44.5 degrees

But please show work and all equations/variables used.

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  1. normal force=mg*cosTheta
    solve for theta

    forcefriction=normalforce*mu*sinTheta

    the second equation cannot be solved without more information, such as the object is going down at constant speed. Otherwise, not solvable.

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