hard · MCAT chem-phys
A 2.0 kg block is pushed 5.0 m along a horizontal surface by a constant force of 10 N. If the coefficient of kinetic friction is 0.20, what is the final kinetic energy of the block starting from rest? (Use g = 10 m/s^2)
- 50 J
- 30 J
- 20 J
- 70 J
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