A) a roller coaster it's traveling with a velocity of 20 m/s at thetop of an incline. If the incline has a height of 10m, determinethe coasters velocity at the middle of the incline. Neglectfriction and use 10 m/s^2 for gravity
B) a vehicle weighing 15000 nt is traveling at 50 m/sin the i direction. It collides with a wall and stops in 1/10second. If the collision was inelastic, determine the average forceof the vehicle on the wall.
