(NEWTON'S LAWS) The figure shows a block of mass m resting on a 20° slope. The block = has coefficients of friction us 0.80 and μ = 0.50 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.0 kg. (a) Assume that the block of mass m is stationary on the incline. Draw free body diagrams for each block in this case, including coordinate systems for each free body diagram. (Note that these coordinate systems can be different from each other!) (b) What is the minimum mass m that will remain stationary and not slip up the incline? (c) If this minimum mass is nudged ever so slightly, it will start being pulled up the incline. What acceleration will it have? (HINT: The tension in the string is different in this case than the tension in the string in parts a and b.) m T 20° 2.0 kg

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: