5) A roller coaster reaches the top of the steepest hill with a speed of 6.0 km/h. It then descends the hill, which is a
Posted: Thu Apr 28, 2022 9:25 am
5) A roller coaster reaches the top of the steepest hill with a speed of 6.0 km/h. It then descends the hill, which is at an average angle of 45° and is 45.0 m long. What will its speed be when it reaches the bottom? Assume 4k = 0.18.