Recent content by kghosh

I read in a physics textbook that it is not zero gravity in ISS but the fact that the ISS is in "free fall" makes astronauts float around. They do not feel any normal force because the vehicle they are in are also in free fall along with them. Then I watched Neil Degrasse Tyson talk about bone...

I just read that Centrifugal Force is a false force. It does not exist. Inertia (which is not a force) is mistakenly called Centrifugal force. Now, here is my question According to Newton's 3rd law of motion, forces always exist in pairs; action and reaction. Centripetal force which is the...

Thanks for all the answers. I get that the shot has to come from the same height (found a similar problem in Giancoli and that one states specifically the shot is coming from the same level). But I am still a little perplexed (even after seeing the MIT demonstration) and I still have a...

This may be a stupid question. In Hewitt physics book there is a problem where a zookeeper on the ground is trying to shoot a monkey on top of a tree. If the monkey drops at the same time as the zookeeper shoots, where should the zookeeper aim, above the monkey, at the monkey or below the...