Why does the fruits starts falling down when tree is shaken?
Ans: In childhood, when we see tree full of fruits we try to shake the tree and fruits fall and we collect it. But did you ever thought why did it happen? Gravity…!! No, gravity is what causes a detached fruit to fall on the ground (and not fly away) but, question is why did it detach in the first place. Let us see.
Inertia is the cause for this. As introduced earlier, inertia is the property of bodies to retain their existing state of motion so when we shake the tree vigorously the fruit tend to remain in state of rest due to inertia while the branches start shaking. Hence, they get detached from the branches and due togravitational force, fruits fall down.
Inertia: A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
Gravitational Force: All objects attract each other with a force of gravitational attraction. Gravity is universal.
This force of gravitational attraction is directly dependent upon the masses of both objects and inversely proportional to the square of the distance that separates their centers. This is called Newton's Universal Law of Gravitation.
F is the force between the masses
G is the gravitational constant (6.674×10−11 N.m/kg2)
m1 is the first mass
m2 is the second mass
r is the distance between the centers of the masses
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