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    Question

    Vivek was walking in the park. On the way he found a

    stone lying. He picked the stone and threw it up in the sky. After few seconds, he observed that the stone come back and fell near his feet. This happened because of
    A Newton’s 1st law of motion Correct Answer Incorrect Answer
    B law of inertia Correct Answer Incorrect Answer
    C gravitational force of the earth Correct Answer Incorrect Answer
    D buoyant force acting on the stone Correct Answer Incorrect Answer

    Solution

    Every object gets attracted towards the earth. The force with which the earth attracts everything towards itself is called the gravitational force of earth. Newton’s 1st law of motion - An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force . Law of inertia - A body will preserve its velocity and direction so long as no force in its motion's direction acts on it. Buoyant force - B uoyancy refers to a force that arises from the pressure exerted on an object by a fluid (a liquid or a gas). Since it's a force, we call it the buoyant force.

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