The distance covered by a particle varies with time as x = k/b (l – e ^-bt). The speed of particle at time t is The distance covered by a particle varies with time as x = k/b (l - e ^-bt). The speed of particle at time t is September 6, 2020 Category: Cengage NEET by C.P Singh , Chapter 2 - Motion in a Straight Line , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related