Q. A person pushes the shopping cart with a force of 100 N acting down at 45 degrees. Of the cart travelled at a constant speed of 1.00 meters per second what is the value of combined retarding force acting horizontally on the cart due to friction and air drag?
Q. A 1.4 kg object at x = 2.00 m, y = 3.10 m moves at an angle 45° north of east. Calculate the magnitude of the object's angular momentum about the origin.