NDA 2024 Physics question
Which one of the following about different frictional forces is correct ?
- (A)Kinetic friction > Static friction > Rolling friction
- (B)Static friction > Rolling friction > Kinetic friction
- (C)Static friction > Kinetic friction > Rolling frictionCorrect
- (D)Static friction > Kinetic friction = Rolling friction
Answer: (C)
Solution
Limiting static friction is the largest, kinetic (sliding) friction is slightly smaller, and rolling friction is much smaller than both.
Question ID VK-032679