Hi guys, I'm having a debate with a mechanical engineer friend of mine, and I was wondering if you could help me solve it. I'm not much of a physicist, but honestly I think he might have this one wrong, I just can't remember my old physics classes well enough to calculate and be sure. The question is this: Does an object falling straight down strike with more force than an object which was held up at the end of a support and allowed to fall/swing through a pivot point? Lets pretend we are using a golf ball. If we hold that golf ball three feet in the air and drop it, ignoring air resistance, how fast is it going when it hits the ground vs If we had a pivot point 3 feet in the air, and attached a golf ball to the end of a 3 foot long zero mass support, rotated that support up around the circumference to the traditional pi radians position and allowed it to swing downward to the 1.5pi radians position, how fast would it be going? Then the crux of the question is if you let the x axis of the circle, a line drawn through the points at 0 radians and pi radians, be ground level, and the the point at pi/2 radians be our starting position, is the ball going faster if you let it drop through the radius directly to the centerpoint of the circle, or if you let it swing down from pi/2 to pi radians using the radius of the circle as a pivot? And is the equation governing the velocity(or should I be more concerned about the acceleration?) uniform throughout every position on the circle? Thank you for your help, I know it's not the most interesting question.