a book falls off a door 8.52 meters above the ground. Determine the time required for the book to reach the ground.
Share
a book falls off a door 8.52 meters above the ground. Determine the time required for the book to reach the ground.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
1.061 seconds
Explanation:
vf^2 = vo^2 + 2ad
vf^2 = (0m/s^2) + 2(9.81m/s^2)(8.52m)
vf = 10.40m/s
t = (vf - vo)/g
(10.40m/s - 0)/9.81m/s^2 = 1.061 seconds