How does a groove in a saucer prevent a tea cup from toppling over in case of sudden jerks? How is it related to the law of inertia?
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Solution
A groove is provided in a saucer for placing the tea cup. It prevents the cup from toppling over in case of sudden jerks. It is provided for the support of the cup,or else the cup will fall when we change our direction due to inetia of direction.