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Physics
2. Force and Laws of Motion
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Q33 of 124 Page 55

When a tree is shaken, its fruits and leaves fall down. Why?

When a branch of a tree is vigorously shaken the fruits and seeds in It fall down due to inertia of rest. The tree was at rest (at first), when the tree is shaken the branches of the tree gains motion but the fruits and leaves tends to be in rest due to inertia of rest and hence they fall down.


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31

Explain why, a person travelling in a bus falls forward when the bus stops suddenly.

32

Give reason for the following:

When a hanging carpet is beaten with a stick, the dust particles start coming out of it.

34

Explain why, it is dangerous to jump out of a moving bus.

35

What is the momentum in kg. m/s of a 10 kg car travelling at

(a) 5 m/s (b) 20 cm/s, and (c) 36 km/h?

Questions · 124
2. Force and Laws of Motion
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