A minimum force F is applied to a block of mass 102 kg to prevent it from sliding on a…
Physics · JEE Main · NTA Exams — Laws of Motion
A minimum force F is applied to a block of mass 102 kg to prevent it from sliding on a plane with an inclination angle 30° with the horizontal. If the coefficients of static and kinetic friction between the block and the plane are 0.4 and 0.3 respectively, then the force F is:
- 157 N
- 224 N
- 315 N
- zero
Answer
(A) 157 N
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