the area of 1 end of U-tube is 0.0 metre square and that of the other end is 1 metre square when you force was applied on the li
1 answer:
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Answer:
M₀ = 5i - 4j - k
Explanation:
Using the cross product method, the moment vector(M₀) of a force (F) is about a given point is equal to cross product of the vector A from the point (r) to anywhere on the line of action of the force itself. i.e
M₀ = r x F
From the question,
r = i + j + k
F = 1i + 0j + 5k
Therefore,
M₀ = (i + j + k) x (1i + 0j + 5k)
M₀ =
M₀ = i(5 - 0) -j(5 - 1) + k(0 - 1)
M₀ = i(5) - j(4) + k(-1)
M₀ = 5i - 4j - k
Therefore, the moment about the origin O of the force F is
M₀ = 5i - 4j - k
Answer:
The kinetic energy is
Explanation:
From the question we are told that
The potential difference is
The potential energy of the end is mathematically represented as
q is the charge on an electron with a constant value of
substituting values
Now from the law of energy conservation
The
Where is the potential energy at the end
So
The negative sign is not includes because kinetic energy can not be negative