A boy of mass 40 kg is climbing a vertical pole at a constant speed. If the coefficient…
Physics · NEET · NTA Exams — Laws of Motion
A boy of mass 40 kg is climbing a vertical pole at a constant speed. If the coefficient of friction between his palms and the pole is 0.8 and \(g=10 \mathrm{~m} / \mathrm{s}^{2},\) the horizontal force that he is applying on the pole is
- 300 N
- 400 N
- 500 N
- 600 N
Answer
(B) 400 N
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