Question

A person hold s a black block weighing 2kg

Answer 1

Mass of the block = 2 kg

Weight of the object = mg = 2 × 10 = 20 N

Each hand needs to provide 10 N of friction for supporting the block from falling.

Normal force due to each hand (N) = 50 N

f = μN

μ = $\frac{f}{N}$

μ = $\frac{10}{50}$

μ = 0.2

Hence, the coefficient of friction between the hand and block is (μ) = 0.2

Hence, option (a) is correct.

Answer 2

here is your answer mate ...