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Q: When the cardboard placed on the glass tumbler is flicked away with a finger a coin placed on it fall in the glass. Which law defines the above statement –
  • A. Principle of conservation of energy
  • B. Law of inertia
  • C. Newton third law of motion
  • D. Principle of conservation of momentum
Correct Answer: Option B - Inertia is that quality of objects, due to which objects try to maintain their state of rest or state of motion, that is, they resist their change. When a card placed on a glass is pushed with a finger, the coin placed on it falls into the glass due to inertia. When the card is pushed, it enters a state of motion while the coin remains in a steady state due to inertia
B. Inertia is that quality of objects, due to which objects try to maintain their state of rest or state of motion, that is, they resist their change. When a card placed on a glass is pushed with a finger, the coin placed on it falls into the glass due to inertia. When the card is pushed, it enters a state of motion while the coin remains in a steady state due to inertia

Explanations:

Inertia is that quality of objects, due to which objects try to maintain their state of rest or state of motion, that is, they resist their change. When a card placed on a glass is pushed with a finger, the coin placed on it falls into the glass due to inertia. When the card is pushed, it enters a state of motion while the coin remains in a steady state due to inertia