wo ropes are connected to a 200 kg dinghy. Two brothers each take one rope and pull. When the brothers pull in the same direction, the dinghy accelerates at a rate of 1.39 m/s2 to the east. If they pull in opposite directions, the dinghy has an acceleration of 0.512 m/s2 to the west. Assume the ropes are horizontal, and ignore any other horizontal forces acting on the dinghy. What is the magnitude of the force each brother exerts on the dinghy? (Assume each magnitude is constant in either direction.) -larger force? -smaller force?

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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: