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Mechanics — Question 89

Original QCE Vault practice · 1 mark

Q89 · Practice questionSimple familiar1 mark

QUESTION 89

A vertical-motion model uses

dv/dt=-9.8-0.4v

, where upward velocity is positive. The terminal speed is

(A)

9.8\ \mathrm{m\,s^{-1}}

(B)

19.6\ \mathrm{m\,s^{-1}}

(C)

24.5\ \mathrm{m\,s^{-1}}

(D)

39.2\ \mathrm{m\,s^{-1}}

ABCD

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