MP Board · Class 8 · Science · FrictionWhy is it easier to slide a box that is already in motion than to start it moving from rest?
Step-by-Step Solution
Sliding friction is slightly less than static friction because the interlocking of surface irregularities does not get enough time to properly lock when the object is already in motion.
Detailed Options Breakdown
Option : Sliding friction is greater than static friction
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Friction.
Option 1: Sliding friction is less than static friction (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Rolling friction is greater than sliding friction
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Friction.
Option 3: There is no friction when moving
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Friction.
💡 Study Guide: This question tests core syllabus concepts from Friction. For formulas, key summaries, and mock exam reference guides, read the full Friction Revision Notes.