Question

7. Two cars start moving from the same point. One travels north at speed of 15 mi/hand the other travels east at 20 mi/h. At what rate is the distance between the cars increasing two hours later?

Answer #1

Two cars start moving from the same point. One travels south at
56 mi/h and the other travels west at 42 mi/h. At what rate is the
distance between the cars increasing two hours later?
mi/h

Two cars start moving from the same point. One travels south at
60 mi/h and the other travels west at 50 mi/h. At what rate is the
distance between the cars increasing 2 hours later? Round to the
nearest hundredth.

Question 1:
Two cars start moving from the same point. one travels south
at 48 mi/h and the other travels west at 20 mi/h. At what rate is
the distance between the cars increasing two hours later?
Question 2:
A boat is pulled into a dock by a rope attached to the bow of
the boat and passing through a pulley on the dock that is 1 m
higher than the bow of the boat. If the rope is pulled...

Two cars start moving from the same point. One travels
south at 56 mi/hr and the other
travels west at 42 mil/hr. At what rate is the distance between the
cars increasing two hours later?
Step 1: Write all the rates in the problem (including the one you
are trying to find) as
derivatives.
--
Step 2: Identify the dependent variables in the derivatives. Find
an equation relating
the dependent variables in the derivatives. You will often need a
formula...

Two cars leave the same point at the same time. One travels east
at 50 mph, while the other travels north at 80 mph. How fast are
the cars moving away from each other after 2 hours

Two people start from the same point. One walks east at 9 mi/h
and the other walks northeast at 6 mi/h. How fast is the distance
between the people changing after 15 minutes? (Round your answer to
three decimal places.)

One car leaves an intersection traveling north at 48 mi/h.
Later, a second car leaves that same intersection traveling east at
90 mi/h. At what rate is the distance between the cars increasing
when the first car is 96 miles north of the intersection and the
second car is 72 miles east of the intersection?

Two cars travel in the same direction along a straight highway,
one at a constant speed of 55 mi/h and the other at 60 mi/h.
(a) Assuming they start at the same point, how much sooner does
the faster car arrive at a destination 14 mi away? min
(b) How far must the faster car travel before it has a 15-min
lead on the slower car? mi

Two cars travel in the same direction along a straight highway,
one at a constant speed of 55 mi/h and the other at 70 mi/h.
(a) Assuming they start at the same point, how much sooner does
the faster car arrive at a destination 14 mi away?
(b) How far must the faster car travel before it has a 15-min lead
on the slower car?

Two aircraft leave an
airfield at the same time. One travels due north at an average
velocity of 84 m s-1 and the other travels due east at
an average velocity of 70 m s-1. Calculate the distance
between the planes after 6 hours. Give your answer in km, to the
nearest km.
Answer km

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