percentage :-
i) price of rice was increased by 25% if by how much percent should price of rise should be reduce to bring it to its original price?
Answers
Answered by
0
Step-by-step explanation:
ΔW = ∫dx⋅F
net
= ∫(vdt)⋅(
dt
d(mv)
) = ∫d(
2
1
mv
2
) = ΔKE Relativistic version: \Delta\,W\ =\ \int d\mathbf{x} \cdot \mathbf{F}_{\rm net}\ =\ \int (\mathbf{v}\,dt)\cdot\left(\frac{d(m\mathbf{v}/\sqrt{1 - \mathbf{v}^2/c^2})}{dt}\right)ΔW = ∫dx⋅F
net
= ∫(vdt)⋅(
dt
d(mv/
1−v
2
/c
2
)
) =\ \int d\left(mc^2\sqrt{1 - \mathbf{v}^2/c^2}\right)\ \ +\ \int d\left(\frac{m\mathbf{v}^2}{\sqrt{1 - \mathbf{v}^2/c^2}}\right)\ =\ \int d\left(\frac{mc^2}{\sqrt{1 - \mathbf{v}^2/c^2}}\right)\ =\ \Delta\,E= ∫d(mc
2
1−v
2
/c
2
) + ∫d(
1−v
2
/c
2
mv
2
) = ∫d(
1−v
2
/c
2
mc
2
) = ΔE
Similar questions