1. (d) inertia. Newtons' first law of motion gives the concept of inertia. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

    (d) inertia. Newtons’ first law of motion gives the concept of inertia.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

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  2. (c) directional inertia. The standing passenger experiences an outward pull in a direction opposite to that of turn due to his directional inertia. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

    (c) directional inertia. The standing passenger experiences an outward pull in a direction opposite to that of turn due to his directional inertia.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

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  3. (b) 0 N. Since velocity is constant, so acceleration and hence force applied is zero. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

    (b) 0 N. Since velocity is constant, so acceleration and hence force applied is zero.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

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  4. (c) to resist any change in its state of motion. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

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