Kenmastar72idn
Answered

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Sagot :

SDCInfinityidn

Answer:

1.) 0.075 km/min

2.) 0 km/min

3.) -0.15 km/min

Explanation:

Formula:

[tex]s= \frac{d}{t}[/tex]

  • s = speed
  • d = distance
  • t = time

Calculating the speed:

1.) [tex]\frac{1.5-0}{20-0}=\frac{1.5}{20}=0.075[/tex]

2.) [tex]\frac{1.5-1.5}{40-20}=\frac{0}{20}=0[/tex]

3.) [tex]\frac{0-1.5}{50-40}=\frac{-1.5}{10}=-0.15[/tex]

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