When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 947 N and the drag force has a magnitude of 1065 N. The mass of the sky diver is 96.6 kg. Take upward to be the positive direction. What is his acceleration, including sign?

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Q: packing crates of masses m1 = 10.0 kg and m2 = 4.00 kg are connected by a light string that passes…

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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: