The answer is A. Urinary system
A roller coaster car starts from the rest from a first summit, descends a vertical distance of 45 meters and then climbs a second summit, reaching the top with a speed of 15m / s. How high is the second summit? Do not consider friction
Answer:
I am not sure if this is the answer
(B) what is the height of the building if it hits the ground after those 5 seconds.