Recent content by Stell

  1. S

    Newton's law problem: Helicopter lifting a box with a rope

    Thank you for your explanation!
  2. S

    Newton's law problem: Helicopter lifting a box with a rope

    Thank you for your reply. So, if i understand, that means a=2.5 m/s² ?
  3. S

    Newton's law problem: Helicopter lifting a box with a rope

    Forces: Box--> W(weight) and T(tension) Rope-->T1(reaction of T) and T2(because of the helicopter) So first i calculated Weight: W=mg=400*10=4000N In order to find the acceleration i should use Newton's 2nd law so: (Box) : T - W = ma T - 4000=400a The problem is with the rope...