Inertia of a body depends ona) weight of the object b) acceleration due to gravity of theplanet c) mass of the object d) Both a & b

To determine the factors that affect the inertia of a body, we need to consider the options provided: a) weight of the object, b) acceleration due to gravity of the planet, c) mass of the object, and d) both a and b.

Step 1: Let's analyze option a) weight of the object. The weight of an object is the force exerted on it due to gravity. However, inertia is not directly dependent on weight alone. Weight is influenced by the mass of the object and the acceleration due to gravity.

Step 2: Now, let's consider option b) acceleration due to gravity of the planet. The acceleration due to gravity is a constant value on a specific planet and does not directly affect the inertia of an object. It is important to note that the acceleration due to gravity can vary from planet to planet, but it does not directly impact the inertia of an object.

Step 3: Finally, let's examine option c) mass of the object. The mass of an object is a fundamental property that directly affects its inertia. Inertia is the resistance of an object to changes in its state of motion, and it is directly proportional to the mass of the object. The greater the mass, the greater the inertia.

Step 4: Considering the analysis of options a), b), and c), we can conclude that the correct answer is d) Both a and b. The inertia of a body depends on both the weight of the object (option a) and the acceleration due to gravity of the planet (option b), as well as the mass of the object (option c).