A mass of 2.0 kg in contact with a horizontal plane (coefficient of friction 0.25) is moving horizontally due to an external horizontal force of 6.0 N. Assuming that the acceleration of gravity is 10 m/s², the magnitude of the mass's acceleration is A) 0.50 m/s². B) 1.0 m/s². C) 2.0 m/s². D) 3.0 m/s².

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Quizplus · Accepted Answer

The force of friction is 0.25 * 2.0 kg * 10 m/s² = 5.0 N. The net force on the mass is 6.0 N - 5.0 N = 1.0 N. The mass's acceleration is 1.0 N / 2.0 kg = 0.50 m/s².

A Mass of 2