Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: moonfire on 24/05/2007 23:06:54

Title: Just a little question
Post by: moonfire on 24/05/2007 23:06:54

How can you throw a ball so that it goes a short distance, comes to a total stop, reverses its motion, and then goes the opposite way. You are not allowed to bounce it against anything, hit it with anything, or tie it to anything?

Title: Just a little question
Post by: DoctorBeaver on 24/05/2007 23:08:19

Backspin.

Next question please!  [^]

Title: Just a little question
Post by: ukmicky on 24/05/2007 23:27:57

Sorry lo but you can't, its not possible unless you throw it straight up and let gravity bring it back down again.

Title: Just a little question
Post by: moonfire on 25/05/2007 03:15:03

Gravity is the answer...