As shown in figure, a 2kg block initially at rest is pulled along an inclined, rough surface by a force that varies with position according to the expression F = (3x+12)î (in N). The coefficient of kinetic friction is μ = 0.2. a) Show the free-body diagram for the block. b) Determine the magnitude of the acceleration at x=1.5m c) Find the speed of the block after it has moved 3m by using work-kinetic energy theorem a m 0 = 15° 100> X

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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: