To solve this problem, we must always remember that energy
is conserved. In this case, since he is falling down, he has highest potential
energy at the top and zero at bottom. While his kinetic energy is zero at the top
since he started from rest and highest at the bottom. We can also say that Potential
Energy lost is Kinetic Energy gained thus,
- ΔPE = ΔKE --->
one is negative since PE is losing energy
- m g (h2 – h1) = 0.5 m (v2^2 – v1^2)
Where,
m = mass of tarzan (cancel that out)
g = gravitational acceleration
h2 = height at the bottom= 0
h1 = height at top = 22 m
v2 = velocity at the bottom
v1 = velocity at top = 0 (started from rest)
Therefore substituting all values:
- 9.8 (- 22) = 0.5 (v2^2)
v2 = 20.77 m / s (ANSWER)
Answer:
Cross over
Explanation:
Your arms are CROSSING OVER. Ill add a comment to confirm this is correct later. If not, ill provide the correct answer. But im confident its cross over
The answer is: To have easy access to a coolant for the reactor.
Hope this helps!:)
~Scarlett
The sun’s huge mass gives it a strong gravitational pull. Because of this gravitational pull, planets that are closer to the sun tend to have different motion than planets that are further away from the sun, because the gravity becomes stronger the closer you get. I hope this helped!
