GATE Mechanical Engineering (ME) 2021 Shift 2 Solved Paper

In a pure orthogonal turning by a zero rake angle single point carbide cutting tool, the shear force has been computed to be 400 N. If the cutting velocity, V_c = 100 m/mm, depth of cut, t = 2.0 mm, feed, s₀ = 0.1 mm/revolution and chip velocity, V_f = 20 m/min, then the shear strength, τ_s of the material will be _____ MPa (round off to two decimal places).