If we shake the branches of the tree the fruits fall. why?​

it is because when we shake the tree the branches of the tree comes in motion state but the fruits still tends to be in the state of rest. due to this the fruits are detached and they fall down

When we shake the branch of a tree the tree possesses a state of motion whereas the fruits and leaves tend to remain in state of rest. Due to this inertia of rest the fruits and leaves get detached from the branch and because of gravity it falls down.

Explanation:

so it's because of the gravity .

take a better picture and ill do it