Posted by bbragg on .
Show that 480W of power is expended by a weightlifter when lifting a 60kg barbell a vertical distance of 1.2m in a time interval of 1.5s.

college physics 
bobpursley,
power=work/time=mgh/time
Posted by bbragg on .
Show that 480W of power is expended by a weightlifter when lifting a 60kg barbell a vertical distance of 1.2m in a time interval of 1.5s.
power=work/time=mgh/time