Pls solve this question of kinematics Share with your friends Share 0 Sachin Pandey answered this Dear StudentWe solve it using relative motion and always relative to BDownward direction is taken as positiveso s will always be +100 m as it is in downward directionarel=g-g=0 Case a) vA=0 m/svB=-50 m/svAB=vA-vB=0-(-50)= 50 m/stime=distancerelative speed=svAB=10050=2 sCase b) vA=25 m/svB=-50 m/svAB=vA-vB=25-(-50)= 75 m/stime=distancerelative speed=svAB=10075=43 sCase c) vA=-25 m/svB=-50 m/svAB=vA-vB=-25-(-50)= 25 m/stime=distancerelative speed=svAB=10025=4 sRegards 1 View Full Answer