If a 32 kg person climbs 4 stairs that .2m each, how much work is done?

asked by @jeremyb10 • about 1 year ago • Physics • 5 pts
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1 answer

W=Fdcostheta. Assuming the stairs are vertical we can say theta=0 since the force acting on the person is due to gravity and points straight down and is parallel with displacement. The force Fg=mg=(32)(9.81)=313.92N. d is the distance travelled which will be 4x.2=.8 so w=(313.92)(.8)=251.14 J

answered by @juanv2 • about 1 year ago