Tuesday
March 28, 2017

Post a New Question

Posted by on .

A weight lifter lifts a barbell from the ground, raises it at a constat velocity and holds it motionless over his head. How does the force of the lifter compare with the wieght of the barbell at different stages of the lift?

  • Science - ,

    w=F*d
    d= 0m
    0J....no work

  • Science - ,

    when the barbell is being lifted its weight is different than when it is stationary

  • Science - ,

    why don't you answer it yourself?

  • Science - ,

    A weight lifter lifts a 550 N weight 1.25 m over his head in 2.5 seconds. What is the power of the weight lifter?

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question