If represents the height

MATHEMATICS · Single correct · A Level · Mathematics · Differentiation · Differentiation

Problem

h(t)

represents the height, in meters, of a hot-air balloon

t

seconds after lift-off, which of the following are the correct units for

h'(30)

? (a)

\text{meters}

(b)

\text{meters per second}

(c)

\text{meters per second squared}

(d)

\text{seconds per meter}