Question

describe in brief an activity to illustrate the property of inertia of rest .​

Answer 1

• Make a pile of similar carom coins on a table, as shown in the figure.
• Attempt a sharp horizontal hit at the bottom of the pile using another carom coin or the striker.
• If the hit is strong enough, the bottom coin moves out quickly. Once the lowest coin is removed, the inertia of the other coins makes them ‘fall’ vertically on the table.
• The inertia of coins tries to maintain its state of rest even when one of the coin moves out.

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Answer 2

Answer:

• This is in accordance with Newton's first law of motion, which states that "a body remains at rest or in uniform motion along a straight line until and unless an external force acts on it."
• An object's inertia is its capacity to resist changes in its state, whether it is at rest or in motion.
• The term includes variations in the object's motion's speed or direction.
• One illustration of this property is the tendency of things to continue traveling in a straight path at a constant speed in the absence of external forces.

Activity:

• Take a glass tumbler that is empty.
• Put a big, smooth piece of card over its mouth.
• A coin should be placed on it. Now use your finger to flip the card horizontally.
• As the card flies away, the coin will fall through the glass.
• The coin was at rest and would remain at rest until the card is flicked because of its inertia at rest.

Explanation:

• All things continue to be at rest or to move uniformly in a straight path until they are acted upon by an outside force.
• The propensity of things to remain at rest or move at the same speed is known as inertia.
• When a card is pulled horizontally, it develops motion as a result of the pulling force.
• However, there is no force acting horizontally on the coin.
• Due to inertia, the coin that was initially resting on the card is still there. As a result, it is separated from the card.
• Because there is no longer any support at the bottom, the coin falls into the glass due to gravity.

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