- #1
NeomiXD
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In this investigation I had to calculate my maximum power as I run up a flight of stairs. These are a few questions that I have for my lab. I want to know if my calculations are right.
Given:
1. mass: 70kg
2. h = 1.17m
3. d= 1.78m
4. t = 2.02s
Use the information from 1 and 2 to find the change in gravitational potential energy.
ΔEG = mgΔh
ΔEG = (70kg) (9.8 N/kg) (1.17m)
ΔEG = 802.62 J
Use the information in steps 1 and 3 to find average kinetic energy.
v = Δd/Δt
v = 1.78m/2.02s
v = 0.88m/s
Ek = mv²/2
Ek = (70kg) (0.88m/s)²/2
Ek = 27.10 J
Using the information in steps 4 and 7 find your power.
W = (27.10J) (1.78m)
W = 23.08 W
P = W/Δt
P = 48.24 J/2.02s
P = 23.88 W
Given:
1. mass: 70kg
2. h = 1.17m
3. d= 1.78m
4. t = 2.02s
Use the information from 1 and 2 to find the change in gravitational potential energy.
ΔEG = mgΔh
ΔEG = (70kg) (9.8 N/kg) (1.17m)
ΔEG = 802.62 J
Use the information in steps 1 and 3 to find average kinetic energy.
v = Δd/Δt
v = 1.78m/2.02s
v = 0.88m/s
Ek = mv²/2
Ek = (70kg) (0.88m/s)²/2
Ek = 27.10 J
Using the information in steps 4 and 7 find your power.
W = (27.10J) (1.78m)
W = 23.08 W
P = W/Δt
P = 48.24 J/2.02s
P = 23.88 W