How is kinetic energy of an object determined?

1 answer:

6 0

The formula for kinetic energy is

KE = (1/2) (mass) (speed)² .

How you measure the object's mass and speed is up to you.
You'd need different methods for different objects, and in some
cases, you'd need quite a bit of ingenuity.

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A current of 3.6-A flows through a conductor. Calculate how much charge passed through and cross-section of the conductor in 25s

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Answer:

90 C

Explanation:

Electric current: This can be defined as the rate of flow of electric charge in a circuit. This can be expressed mathematically as,

I = dQ/dt

dQ = Idt

∫dQ = ∫Idt

Q = It................................ Equation 1

Where Q = amount of charge, I = current, t = time.

Given: I = 3.6 A, t = 25 s.

Substituting into equation 1,

Q = 3.6(25)

Q = 90 C.

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