Zhann, Wait a minute let's see... a void is different from a vacuum ... but let's consider the vacuum first. You must figure out how these two objects got into the vacuum and whether they are being influeced by gravity or even if their velocity is constant or accelerating. given the above information it would be impossible to tell, but if you're willing to assume that the vacuum is in a jar somewhere and not out in space for after all what would these two objects be doing out in space and thus assuming there was no initial acceleration you would have to say that normally they are both following one of Newton's 3 laws of motion and are probably at rest and thus the same speed would apply for both... but it would apply if gravity were affecting their movement at 32 feet/(sec(squared)). this neglects sideways movement attraction of the two objects would have on each other if they were dropped at the same time. the feather due to the third law "every action has an equal and opposite reaction" in this case gravity affecting along with the greater sideways inerta of the cannonball to moving towards the feather which by any definition of cannonball and feather I've ever herd of the cannonball would way outmass the feather and thus the feather would travel towards the cannonbal as well as motivating downwards. so the feather in that case would travel faster. in a void as we might define as being devoid of objects by definition, the feather and the cannonball wouldn't be there or again it wouldn't be a void. so in that case neither would be faster. "Time flies like an arrow; fruit flies like a banana". Groucho Marx If you believe everything you read, you better not read - Japanese proverb ................................................... Danamo, "Why, a four-year-old child could understand this! Someone get me a four-year-old child!" - Groucho "Who are you going to believe, me or your own eyes?" -Groucho "Behind every successful man is a woman, behind her is his wife." Groucho ....................................................... speaking of which why should groucho have all the fun? ....................................................... "My wife and I were happy for twenty years. Then we met." Rodney Dangerfield I haven't spoken to my wife in years. I didn't want to interrupt her." Rodney Dangerfield. "Eighty percent of married men cheat in America. The rest cheat in Europe." Jackie Mason I haven't spoken to my wife in years. I didn't want to interrupt her." Rodney Dangerfield. "Some people ask the secret of our long marriage. We take time to go to a restaurant two times a week. A little candlelight, dinner, soft music and dancing. She goes Tuesdays, I go Fridays." Henry Youngman. Do you know what it means to come home at night to a woman who'll give you a little love, a little affection, a little tenderness? It means you're in the wrong house, that's what it means." George Burns. ......................................................