a car travels in a circle with constant speed. the net force on the car ______
a- is zero becasuse the car is not accelerating
b-is directed forward, in the direction of travel
c-is directed toward the center of the curve
d-is directed away from the center of the curve
a common thread spool rests on a flat table. you gentyly pull at an angle on a short piece of thread attached to the spool that causes the spool to slide withouut rotating. with the thread arm at this ange the lever arm is??
a- small, but not zero, and the torque is zero
b- perpendicular to...