A 10-kg block is pushed across a horizontal surface with a horizontal force of 20 N against a friction force of 10 N.The acceleration of the block is A)1 m/s². B)2 m/s². C)5 m/s². D)10 m/s². E)none of the above

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Quizplus · Accepted Answer

According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. In this case, the net force acting on the block is 20 N - 10 N = 10 N. Therefore, the acceleration of the block is 10 N / 10 kg = 1 m/s^2.

A 10-Kg Block Is Pushed Across a Horizontal Surface with a Horizontal