Ok, so you are sure the correct answer is 392 Watts? I feel like I will be shunned for going against the professor, but I have to go with my gut on this one.
Thanks!
Homework Statement
How much power does a weightlifter expend when lifting a 50kg barbell a distance of 1.2m in a time interval of 1.5s?
Homework Equations
Power=work done/time interval (in Newton meters per second or Watts)
Work=Fd (in Newton meters or Joules)
The Attempt at a...
Homework Statement
Hi, new to the Physics Forum and desperately need some help with a math analysis problem...
Prove that {x|x>1} and {x|0<x<1} are equivalent sets by writing a function and show that it is one-to-one and onto.
Homework Equations
The Attempt at a Solution