Search results

  • Users: PeterPeter
  • In Mechanics
  • Content: Threads, Posts
  • Order by date
  1. P

    Work energy theorem

    I read on the Internet that the work done by a (rigid) body = the change in Kinetic energy. What if I lift a rigid body slowly and vertically by 1 meter above the Earth's surface so that the initial velocity = final velocity =0? According to the Work Energy theorem as stated on many sites on...
  2. P

    Aircraft lift - is it all Bernoulli's principle?

    I find it hard to believe that the only factor important in computing aircraft lift is Bernoulli's principle. Doesn't good old Newton's Second Law play an effect? In other words simply deflecting the airflow downwards. Does anyone know the relative importance of these factors? (EG for a...