Asked by Cecilia

Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.
Answered by bobpursley
power=work/time=mgh/time=60*9.8*1.2/1.5
Answered by Brenda
Show that 480 W of power is expended by a weightlifter
when lifting a 60-kg barbell a vertical distance of 1.2 m
in a time interval of 1.5 s.