This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Hey Tsholofelo — ready when you are. Here's the solution to question 2: Step 1: Identify the given values. The weight of the block is W = 90 N. The force required to get the block moving (static friction) is F_s = 40 N. The force required to keep the block moving at a constant velocity (kinetic friction) is F_k = 25 N. Step 2: Calculate the normal force. For a block on a horizontal surface, the normal force F_N is equal to its weight W. F_N = W = 90 N Step 3: Calculate the coefficient of static friction (_s). The formula for static friction is F_s = _s F_N. Rearrange to solve for _s: _s = (F_s)/(F_N) Substitute the values: _s = 40 N90 N _s ≈ 0.44 Step 4: Calculate the coefficient of kinetic friction (_k). The formula for kinetic friction is F_k = _k F_N. Rearrange to solve for _k: _k = (F_k)/(F_N) Substitute the values: _k = 25 N90 N _k ≈ 0.28 The coefficients of friction are: Static friction coefficient: 0.44 Kinetic friction coefficient: 0.28 Send me the next one 📸