A W-beam with normal cross-section shown below is subjected to vertical load P in the plane of symmetry. P Flange B -a'> D E F G -> Web E' F n in Progress Which of the following statement is true? The W beam is safe if the actual shearing stress at the c-c' cross-section greatly exceeds the shear strength of the beam material The shearing stress remains zero across the c-c' cross-section The shearing stress changes dramatically across the c-c' cross-section The shearing stress does not change much across the cc cross