1.

Explain why some of the fruits may get detatched from a tree if we vigorously shake its branch.

Answer»

This is due to the inertia of rest. When the branch is shaken swiftly, the branch suddenly moves a little distance, but the fruits attached to it by a slender stalk (petiole) tend to remain where they are (due to inertia). So, the stalk feels a jerk and breaks away and the fruit falls down.



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