It will take 13 seconds for the golf ball to hit the ground. The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
90
the answer is 90 but the answer i give has to be over 20 characters so i'm typing random things. have a good day:)
7/10s of 40 would be 28 so that leave 12 hours to work inside