A particle, of mass 10−3kg and charge 1.0C, is initially at rest. At time t=0, the particle comes under the influence of an electric field E(t)=E0sinωti^ where E0=1.0NC−1 and ω=103rad s−1. Consider the effect of only the electrical force on the particle. Then the maximum speed, in ms−1, attained by the particle at subsequent times is ____.