physics standardized test prep answers
e acceleration of the box? Prep Answer: First, find the frictional force: \( f_f = \mu_k \times N \). Normal force \( N = mg = 10\, \text{kg} \times 9.8\, \text{m/s}^2 = 98\, \text{N} \). So, \( f_f = 0.2 \times 98\, \text{N} = 19.6\, \text{N} \). Net
