Which Of The Following Is Not A Uniform Circular Motion?

Which Of The Following Is Not A Uniform Circular Motion? 1) The bullet has a constant speed and travels in a straight line, so it will have a constant velocity and hence it is in uniform motion. 2) Swinging pendulum is under the action of gravitational force and is also changing its direction – hence

Does Constant Speed Mean No Friction?

Does Constant Speed Mean No Friction? Does constant speed mean no friction? If an object is moving at a constant speed the force of friction must equal the applied (horizontal) force, and for it to be accelerating or decelerating, the force of friction and the applied force must be unequal. What does it mean when