A parachutist bails out of airplane and suddenly parachute did not open but after falling 80 m he opens his parachute due to which retardation of 4m/s . He reaches on the ground with velocity 4m/s . What was the height of airplane at the time of bail and total time taken by parachutist to reach on the ground ?
Vector A and vector B both lie in the same xy plane . Is it possible for them to have same magnitude but different components and same components but different magnitude
