At noon, ship a is 60 km west of shipb. ship a is sailing south at 15 km/h and ship b is sailing north at 5 km/h. how fast is the distance between the ships changing at 4:00 pm?
Accepted Solution
A:
dA/dt=15 km/h and dB/dt=5 km/h base of our triangle if drawn is 60 km to find dD/dt when t=4 hours we shall have: