A mass m rests on a horizontal surface. The coefficient of friction between the mass and…
Physics · JEE Main · NTA Exams — Laws of Motion
A mass m rests on a horizontal surface. The coefficient of friction between the mass and the surface is \(\mu\). If mass is pulled by a force F as shown in figure. The limiting friction between mass and the surface will be:
- \(\mu \mathrm{mg}\)
- \(\mu\left[m g-\left(\frac{\sqrt{3}}{2}\right) F\right]\)
- \(\mu\left[m g-\left(\frac{F}{2}\right)\right]\)
- \(\mu\left[m g+\left(\frac{F}{2}\right)\right]\)
Answer
(B) [m g- ( 3 2 ) F ]
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