1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

Calculating the resultant force using vector

  1. Nov 11, 2007 #1
    Please HELP!!!!

    I need help with a question....I don't know how to do it.....can someone please tell me how.
    This question is about calculating the resultant force using vectors.

    There is a parachutist with a 500 N force acting upwards on him and a 1000 N force acting downwards on him. There is also a 300 N force of wind acting towards him at a 45 degree angle. How do I calculate the resultant force on the parachutist?

    thank you for your time
  2. jcsd
  3. Nov 11, 2007 #2
    So you have:

    Forces in Y:
    500N, 1000N

    The force that act at a certain degree should be expressed in Y and X components:
    If the wind of 300 N comes from below at 45 degree angle:

    X component of the 300 N force: 300 x cos (45) = xxx N
    Y component of the 300 N force: 300 x sin (45) = xxx N

    to calculate the resultants of all forces use pythagoras
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Calculating resultant force Date
Calculating Net Force results in a final velocity Jan 14, 2015
Calculate the resultant force Jul 21, 2013
Calculate resultants of two forces Jan 27, 2013