about-bingo.net » Physics http://about-bingo.net All about Bingo Fri, 30 Jul 2010 10:21:49 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 What is the speed of the 40 ton car relative to the ground? http://about-bingo.net/what-is-the-speed-of-the-40-ton-car-relative-to-the-ground http://about-bingo.net/what-is-the-speed-of-the-40-ton-car-relative-to-the-ground#comments Fri, 15 Jan 2010 19:55:32 +0000 admin http://about-bingo.net/what-is-the-speed-of-the-40-ton-car-relative-to-the-ground
DMDil asked:


A 40 ton rail car and a 70 ton rail car, initially at rest, are connected together with a giant but massless compressed spring between them. When released, the 40 ton car is pushed away at a speed of 3.5 m/s relative to the 70 ton car. What is the speed of the 40 car relative to the ground
answer should be in V= ? m/s
guys,,,anyone who can help me with this?

Samuel
]]> http://about-bingo.net/what-is-the-speed-of-the-40-ton-car-relative-to-the-ground/feed 1 What is the net force of 40 newtons and 50 newtons acting in the same direction? http://about-bingo.net/what-is-the-net-force-of-40-newtons-and-50-newtons-acting-in-the-same-direction http://about-bingo.net/what-is-the-net-force-of-40-newtons-and-50-newtons-acting-in-the-same-direction#comments Fri, 15 Jan 2010 14:27:04 +0000 admin http://about-bingo.net/what-is-the-net-force-of-40-newtons-and-50-newtons-acting-in-the-same-direction
Resh asked:


What is the net force of 40 newtons and 50 newtons acting in the opposite direction?

Todd
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