1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Force of water on falling bag

  1. Dec 16, 2009 #1
    At an altitude of 315 m above a lake, a hot-air balloon pilot drops a 2.50 kg sandbag. If the bag comes to a stop 4.50 m below the surface of the lake, what force was applied by the water on it?

    I was thinking v= 2.50kg x 9.81km/h= 24.525m/s
    i cant remember how to get the force
  2. jcsd
  3. Dec 16, 2009 #2


    User Avatar
    Homework Helper

    Re: force

    Like I replied in your other thread with the same problem, use the law of conservation of energy.

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook