Answer:
- Potential Energy = mgl (1 - cosθ)
Step-by-step explanation:
Given :-
- Mass of stick = m
- Length of stick = l
- Angle = θ
To Find :-
- Increase potential energy
Solution :-
✪ According to the given data :-
⠀⠀⠀→ cosθ = ᵇ/ₕ
⠀⠀⠀→ cosθ = ᴬᴮ/l
⠀⠀⠀→ AB = l cosθ
❂ For Height :-
⠀⠀⠀→ h = l - l cosθ
⠀⠀⠀→ h = l (1-cosθ)
☯ As we know that
⠀⠀⠀→ Potential Energy = mgh
⠀⠀⠀→ Potential Energy = mg × l (1-cosθ)
⠀⠀⠀→ Potential Energy = mgl (1-cosθ)