NEET 2018
- Exam
- NEET
- Year
- 2018
- Subject
- Physics
- Chapter
- Laws of Motion
NEET 2018 · Physics · Laws of Motion
Which one of the following statements is incorrect?
Which one of the following statements is incorrect?
Options
- AFrictional force opposes the relative motion
- BLimiting value of static friction is directly proportional to normal reaction
- CRolling friction is smaller than sliding friction
- DCoefficient of sliding friction has dimensions of length
Correct answer
D. Coefficient of sliding friction has dimensions of length
Step-by-step solution
∵ {f}_\lim = {\mu}_{s} N
⇒ {\mu}_{s} = \dfrac{{f}_\lim}{N}
Coefficient of sliding friction has no dimension
⇒ {\mu}_{s} = \dfrac{{f}_\lim}{N}
Coefficient of sliding friction has no dimension