Physics · Static and Kinetic friction, laws of friction, rolling friction
If a man is walking, then the direction of friction is:
If a man is walking, then the direction of friction is:
- A. opposite to direction of motion
- B. same as that of direction of motion.
- C. perpendicular to direction of motion.
- D. \( 45^{\circ} \) to the direction of motion
Step-by-step solution
When a man walks, he pushes the ground backward. Friction opposes the relative motion, so the ground exerts a forward frictional force on his foot, which propels him forward. Thus, the direction of friction is the same as the direction of motion.
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