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First Law of Motion:             It states “A body remains at rest or continue to move with uniform velocity in a straight line, unless some unbalanced force acts upon it to change its state of rest or uniform motion” Inertia:             The property of a body to oppose any change in its state of rest or of uniform motion is called inertia.  Newton’s Second Law of Motion: “When a force is applied on a body, it produces acceleration in the body. The acceleration is in the direction of the force. The acceleration is directly proportional to the applied force and inversely proportional to the mass of the body.”             Mathematically   F=ma Force:             Force is an agent which when applied to a body changes or tends to change its sta...