Stress σ is the force per area, i.e. σ=F/A. Alternatively, this can be expressed σ=FA^-1. The dimensions and units of force follow from Newton's 2nd law and are provided in example E1. Area has the dimension L^2. The SI unit (derived unit) of stress is the pascal (Pa).
1). What are the dimensions (M, L, T) of stress?
2). What are the SI units (basic units, kg, m, s) of stress, i.e. the pascal?