Q. A small steel ball bearing with a mass of 10.0 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.31 m. Calculate the horizontal distance the ball would travel if the same spring were aimed 34.0 deg from the horizontal.
Q. A small remote-control car with a mass of 1.58 moves at a constant speed of = 12.0 in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 .What is the magnitude of the normal force exerted on the car by the walls of the cylinder at a) point A (at the bottom of the vertical circle)? b) point B (at the top of the vertical circle)?