The average shear stress in a rectangular wooden beam 100 mm wide, 250 mm deep and 3 m long carrying a uniformly distributed load with an intensity of 40 kN/m is found to be 2.4 Mpa, calculate the maximum shear stress.
1
3.6 MPa
2
4.8 MPa
3
2.4 MPa
4
5.2 MPa