A ball released from the tree top if a height of 45m. How long does it take to reach the ground?

The ball will take 45 seconds to reach the ground.U=0(since ball is dropping)So, we have to find t=?Givena=-9.8m/sS=45mAs we know, S=ut+1/2at^2so,t^2=45×90/2hencet=45s.so the time taken is 45 seconds.know more about time-related problems at:https://brainly.com/question/18370203