Q. A car is travelling up one side of a hill and down the other side. The crest is a circular arc with radius of 45m. Determine the maximum speed that the car can have while moving over the crest without losing contact with the road.
Q. A farm truck moves due north with a constant velocity of 14 m/s on a limitless horizontal stretch of road. A boy riding on the back of the truck throws a can of soda upward and catches the projectile at the same location on the truck bed, but 19 m farther down the road.