An airplane's rate of climb is just the rate of increase in its distance above sea-level. Suppose that an airplane is just pulling out of a dive and its rate of climb changes from - 10 m/s to + 10 m/s in just one second. What is its vertical component of acceleration?

(A) 0
(B) - 10 m/s
(C) +10 m/s
(D) + 20 m/s
(E) - 20 m/s

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An airplane's rate of climb is just the rate of increase in its distance above sea-level. Suppose that an airplane is just pulling out of a dive and its rate of climb changes from - 10 m/s to + 10 m/s in just one second. What is its vertical component of acceleration?

(B) - 10 m/s

No.
That is its initial vertical velocity component.

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An airplane's rate of climb is just the rate of increase in its distance above sea-level. Suppose that an airplane is just pulling out of a dive and its rate of climb changes from - 10 m/s to + 10 m/s in just one second. What is its vertical component of acceleration?

(C) +10 m/s

No.
That is its final vertical velocity component.

Try again.

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An airplane's rate of climb is just the rate of increase in its distance above sea-level. Suppose that an airplane is just pulling out of a dive and its rate of climb changes from - 10 m/s to + 10 m/s in just one second. What is its vertical component of acceleration?

(D) + 20 m/s

Yes.
Final velocity component - initial, divided by one second.
Check the other answers.

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An airplane's rate of climb is just the rate of increase in its distance above sea-level. Suppose that an airplane is just pulling out of a dive and its rate of climb changes from - 10 m/s to + 10 m/s in just one second. What is its vertical component of acceleration?

(E) - 20 m/s     No.

[(10 m/s) - (-10 m/s)]/(1s) = [10 m/s + 10 m/s]/(1s).


 Try again.

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An airplane's rate of climb is just the rate of increase in its distance above sea-level. Suppose that an airplane is just pulling out of a dive and its rate of climb changes from - 10 m/s to + 10 m/s in just one second. What is its vertical component of acceleration?

(A) 0     No.

[(10 m/s) - (-10 m/s)]/(1s) = [10 m/s + 10 m/s]/(1s).


 Try again.

Questions     What this question is about