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2 years ago

Which of the following is an instantaneous speed?

Physics

1 answer:

Brilliant_brown [7]2 years ago

5 0

Answer:

A: All of the above

Explanation:

The instantaneous speed of an object is simply the current seed of the object at any given time. The SI unit is m/S and it is a vector quantity.

Therefore, according to the given options, they all have SI units that are consistent with distance and time which makes them all an example of instantaneous speed.

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Explanation:

Given that,

Length of gold wire, l = 4 m

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Resistance in terms of resistivity is given by :

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Also, V = IR

So,

$\dfrac{V}{I}=\dfrac{\rho l}{A}$

A is area of wire,

$\dfrac{V}{I}=\dfrac{\rho l}{\pi r^2}$ , r is radius, r = d/2 (diameter=d)

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