As we have discussed in article 6 3 that equations like v u

Last updated: 6/10/2023

As we have discussed in article 6 3 that equations like v u at ve etc can be applied directly with constant or uniform acceleration Further in one dimensional motion all vector quantities displacement velocity and acceleration can be treated like scalars by using sign convention method In this method one direction is taken as positive and the other as the negative and then all vector quantities are written with paper signs In most of the cases we will take following sign convention The equations used in 1 D motion with uniform acceleration are v u at v u 2as ut 1 2 at s ut 1 So ut In horizontal 1 D motion ve ve In vertical 1 D motion Fig 6 10 S u at 2 In the above equations u initial velocity v velocity at time t a constant acceleration s displacement measured from the starting point ve iii iv v Here starting point means the point where the particle was at t 0 It is not the point where u 0 S displacement measured from any other point say P where P is not the starting point So displacement of the starting point from P s displacement not the distance in the second