Question

q= A A Force of 50N is Just sufficient to pull block of wood weighting 10kg on a rough horizontall surfure. The coefficient of friction is______
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Answer 1

Answer:

Explanation:

force of 50N is just sufficient means , F= friction (f) (it means the equilibrium)

μ=co efficient of friction

we know f=μN,where N is the normal reaction force

here ,the vertical forces cancel each other,that means N=Mg

substituting N in equation of f

f=μMg

we know that F=f

taking the value of g=10m/s²

so F=μMg ⇒ 50 = μ×10×10 ⇒ μ=50/100 =1/2 = 0.5

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