Problem 6'17

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Problem 6.17
Ships A and B leave port together. For the next
two hours, ship A travels at 35 mph in a
direction 75 degrees west of north while ship B
travels 35 degrees east of north at 15 mph.
Part A   What is the distance between the two
ships two hours after they depart?
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Part B   What is the speed of ship A as seen by
ship B?
Boat B
Boat A
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Problem 6.25
A projectile is fired with an initial speed of
11.0  m/s  at an angle of 60.0 degrees  above the
horizontal. The object hits the ground 7.50
s  later Part A   How much higher or lower is
the launch point relative to the point where the
projectile hits the ground?
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Part B   To what maximum height above the launch
point does the projectile rise?
At apex vy0
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Part C   What is the magnitude of the
projectile's velocity at the instant it hits the
ground?
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Problem 6.41
A popular pastime is to see who can push an
object closest to the edge of a table without its
going off. You push the 100 g object and release
it 1.00 m from the table edge. Unfortunately, you
push a little too hard. The object slides across,
sails off the edge, falls 1.10 m to the floor,
and lands 40.0 cm from the edge of the table.
Part A   If the coefficient of kinetic friction
is 0.500, what was the object's speed as you
released it?
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Problem 6.60
While driving north at 25 m/s during a rainstorm
you notice that the rain makes an angle of 38
degrees with the vertical. While driving back
home moments later at the same speed but in the
opposite direction, you see that the rain is
falling straight down. Part A From these
observations, determine the speed of the
raindrops relative to the ground.
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Problem 6.64