Question

a body starts to slide over a horizontal surface eith v=0.5 m/s due to friction
v decreases at the rate of 0.5 m
how much will it take for the body to stop
answer it fast plz

Answer 1

According to an equation of kinematics for linear motion,v= u+at, where, v is velocity at time t . We have to finnd t . u=0.5m/s, the initial velocity. a=-0.5 m/s^2 (retardation). When body stops moving ,v=0m/s. Substituting these values,t=-(0.5/-0.5)=1s.