energy=power*timeinSeconds
Beth
a. force*distance=work
b. power=work/time
1.) How much energy does a 60 W light bulb consume in 1 hour?
2.) Beth pulled her brother (m=85 kg) in a 10 kg sled with a constant force of 95 N for 100 m.
a) How much work did Beth do in moving her brother?
b) How much power did she expend if it took her 3 min (180 s) to move this distance?
1 answer