Answers to Chapter 3 – even problems

Section 3.7

# 2 dx/dt=-3/2

#14 dA/dt=48 pi sq.in.

#22 dr/dt=3/16 pi

#24 dx/dt=2.5

#26 D=50 mi/h

#32 dS/dt=2.5 sq. in per min.

#34 dy/dt=0.71 ft/min

#38 ds/dt=8 ft/s