Question: In a physics lab, students slid a mass down a ramp and determined the potential and kinetic energy at two points 55 cm apart.

In a physics lab, students slid a mass down a ramp and determined the potential and kinetic energy at two points 55 cm apart. Their results are in the table below. Position Ep (x 103 J) Ek (x 103 J) 75 15 40 25 5. The average force of friction acting on the mass is a.b 10 N. The values of a, b and c are and (Record your three-digit answer in the numerical-response section below.) 000 Your answer:

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