MP Board · Class 9 · Science · Work and EnergyWhich of the following is an example of negative work done?
Step-by-Step Solution
Negative work is done when the force and displacement are in opposite directions (angle is $180^\circ$). Frictional force acting on a moving object is a classic example of negative work.
Detailed Options Breakdown
Option : A horse pulling a cart
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Work and Energy.
Option 1: A fruit falling from a tree
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Work and Energy.
Option 2: Work done by friction on a moving car (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: A satellite moving around the Earth
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Work and Energy.
💡 Study Guide: This question tests core syllabus concepts from Work and Energy. For formulas, key summaries, and mock exam reference guides, read the full Work and Energy Revision Notes.