Question

Explain why some of the leaves
may get detached from a tree if
we vigorously shake its branch.
Why do you fall in the forward
direction when a moving bus
brakes to a stop and fall
backwards when it accelerates
from rest?​

Answer 1

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When a tree is vigorously shaken, the branches of the tree come in motion but the leaves tend to continue in their state of rest due to inertia of rest. As a result of this, leaves get separated from the branches of the tree and hence fall down.

Answer 2

Inertia of rest for leaves and acceleration

Inertia of motion for brakes