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]
