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Dust can be removed out of a blanket using
  • a)
    Law of inertia
  • b)
    Newton’s second law of motion
  • c)
    Newton’s third law of motion
  • d)
    Newton’s law of gravitation
Correct answer is 'A'. Can you explain this answer?
Verified Answer
Dust can be removed out of a blanket usinga)Law of inertiab)NewtonR...
When a blanket is bitten with a stick or something then particles of blanket come into motion while dust particles remains in rest thus comes out which shows law of inertia.
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Most Upvoted Answer
Dust can be removed out of a blanket usinga)Law of inertiab)NewtonR...
Acc To law of inertia a particle tends to remain at rest or uniform motion unless acted by an external force. when you jerk the blanket it moves but the dust particles remain at their original position. And finally dust gets separated. u may hav seen this on dining table of u keep a plate and pull the tabel cloth quickly the plate remains on tabel while cloth is removed(Due to law of inertia)
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Community Answer
Dust can be removed out of a blanket usinga)Law of inertiab)NewtonR...
Given:
Mass of the block (m) = 2 kg
Force applied (F) = 8 N
Time (t) = 5 s

To Find:
Final velocity of the block (v)

Formula:
Newton's second law of motion states that the acceleration (a) of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, it can be represented as:
F = m * a

The acceleration of an object is also related to its change in velocity (Δv) over time (t) by the equation:
a = Δv / t

Rearranging the equation, we get:
Δv = a * t

Solution:
- Since the horizontal surface is frictionless, there is no opposing force to the applied force. Therefore, the net force acting on the block is equal to the applied force.
- Using Newton's second law of motion, we can find the acceleration of the block:
F = m * a
8 N = 2 kg * a
a = 8 N / 2 kg
a = 4 m/s²

- Now, we can calculate the change in velocity (Δv) of the block using the equation:
Δv = a * t
Δv = 4 m/s² * 5 s
Δv = 20 m/s

- The final velocity of the block is equal to the change in velocity (Δv) because the block starts from rest:
v = Δv
v = 20 m/s

Answer:
The final velocity of the block is 20 m/s.
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