Answer:

Speed (velocity) depends on distance and time travel

Further explanation

Linear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration

At constant velocity motion:

the speed of vo = v = constant

acceleration = a = 0

Δx = vt or x = xo + vt

An equation of constant velocity motion

\rm D=v\times tD=v×t

D =distance , m

v = velocity, m/s

t = time, s

1. speed = v= 60 mph, t = 6 hours

\rm D=60\times 6=\boxed{\bold{360~miles}}D=60×6=

360 miles

2. distance = d =480 miles, t = 8 hours

\rm v=\dfrac{480}{8}=\boxed{\bold{6~mph}}v=

8

480

=

6 mph

3. speed = v = 3 mph, d = 24 miles

\rm t=\dfrac{24}{3}=\boxed{\bold{8~hours}}t=

3

24

=

8 hours

4. speed = v = 65 mph, t = 4 hours

\rm d=65\times 4=\boxed{\bold{260~miles}}d=65×4=

260 miles

5. speed = v = 6 mph, t = 4 hours

\rm d=6\times 3 =\boxed{\bold{18~miles}}d=6×3=

18 miles

6. d = 30 miles, v = 10 mph, initial time = 2:00 pm

\rm t=\dfrac{30}{10}=3~hourst=

10

30

=3 hours

time arrive :

\rm 2:00~pm+3~hours=\boxed{\bold{5:00~pm}}2:00 pm+3 hours=

5:00 pm

Learn more

uniformly accelerated motion

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the probe’s velocity relative to the earth

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Uniformly accelerated motion: vertical dimension

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