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प्रश्न
Give a scientific reason.
When an object falls freely to the ground, its acceleration is uniform.
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उत्तर
When an object falls freely to the ground, it is under the effect of a constant force known as the force of gravity. No other forces act on it. Hence, from Newton's second law of motion, we can say that this constant force of gravity accelerates the freely falling object uniformly. This uniform acceleration is known as acceleration due to gravity which acts towards the centre and is denoted by g.
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संबंधित प्रश्न
State the type of motion represented by the following sketches in Figures.
Give an example of each type of motion.
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(b) Compare the magnitude of acceleration and retardation .
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