Question

If we walk on Ice its not easy for us why?

• A. Low friction
• B. High friction
• C. Zero friction
• D. None of these

Hint:

Friction is a force that opposes motion. It's necessary for walking because it provides the grip needed to push off the ground. On slippery surfaces like ice, friction is very low, making it difficult to walk without slipping.

Answer 1

The Correct Option is A

Step 1: Understand the concept of friction in walking.
When we walk, we push backwards on the ground, and the ground, in turn, pushes us forwards with an equal and opposite force (Newton's Third Law of Motion). This forward push from the ground is due to friction between our shoes and the walking surface. Friction is essential for us to gain a grip and propel ourselves forward. Step 2: Consider walking on ice.
Ice is known for being a very slippery surface. This slipperiness is a direct result of low friction between our shoes and the ice. Step 3: Evaluate the given options.

(1) Low friction: When the friction between our shoes and the ice is low, there isn't enough opposing force for us to push against. This makes it difficult to get a grip, resulting in slipping and making it hard to walk. This aligns with the understanding of friction and walking.
(2) High friction: High friction would make it easier to walk, as it would provide a strong grip. This contradicts the experience of walking on ice.
(3) Zero friction: While friction on ice is very low, it's generally not exactly zero. Even a tiny amount of friction exists. However, "low friction" is the more accurate and practical explanation for the difficulty. If it were truly zero, it would be impossible to initiate or stop motion.
(4) None of these: Since "Low friction" is a direct and accurate explanation, this option is incorrect. Step 4: Conclude the reason for difficulty in walking on ice.
Walking on ice is difficult because of the low friction between our shoes and the ice surface. (1) Low friction