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Elena L [17]
3 years ago
10

A student is given a problem in which a car speeds up from rest to 30 m/s in 6 seconds. The student states that the acceleration

of the car is 30 m/s/s. Which is the best analysis of this answer? A) The student is correct. B) It is the velocity and not the acceleration which is 30m/s/s. C) The student forgot to divide by the time which would yield 5 m/s/s. D) The student forgot to multiply by the time which would yield 180 m/s/s.
Physics
1 answer:
MakcuM [25]3 years ago
5 0

The student forgot to divide by the time which would yield 5 m/s/s. (C)

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The resistance of the wire after it is stretched is 93.31R.

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R₁ = (ρ x l₀ x 9.66)/(A₀/9.66) = 93.31 x (ρl₀)/A₀

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