Answer:
1.)
Given:
Vf - 60m/s
Vi - 12m/s
t - 10s
Unknown:
Acceleration (a)
Formula:
[tex] \frac{vf - vi}{t} [/tex]
Solution:
[tex] \frac{60 - 12}{10} [/tex]
[tex] \frac{48}{10} [/tex]
[tex] = 4.8[/tex]
2.)
Vf - 75km/s
Vi - 20km/s
t - 15s
[tex] \frac{75 - 20}{15} [/tex]
[tex] \frac{55}{10} [/tex]
[tex] = 5.5[/tex]
3.)
)Given:
Vf - 40km/s
Vi - 0km/s
t - 4s
[tex] \frac{40 - 0}{15} [/tex]
[tex] \frac{40}{4} [/tex]
[tex] = 10[/tex]
4.)
Vf - 90km/s
Vi - 60km/s
[tex] \frac{90 - 60}{10} [/tex]
[tex] \frac{30}{10} [/tex]
[tex] = 3[/tex]
5.)
Vf - 30km/s
t - 2s
[tex] \frac{30 - 20}{2} [/tex]
[tex] \frac{10}{2} [/tex]
[tex] = 5[/tex]
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Verified answer
Answer:
1.)
Given:
Vf - 60m/s
Vi - 12m/s
t - 10s
Unknown:
Acceleration (a)
Formula:
[tex] \frac{vf - vi}{t} [/tex]
Solution:
[tex] \frac{60 - 12}{10} [/tex]
[tex] \frac{48}{10} [/tex]
Answer:
[tex] = 4.8[/tex]
2.)
Given:
Vf - 75km/s
Vi - 20km/s
t - 15s
Unknown:
Acceleration (a)
Formula:
[tex] \frac{vf - vi}{t} [/tex]
Solution:
[tex] \frac{75 - 20}{15} [/tex]
[tex] \frac{55}{10} [/tex]
Answer:
[tex] = 5.5[/tex]
3.)
)Given:
Vf - 40km/s
Vi - 0km/s
t - 4s
Unknown:
Acceleration (a)
Formula:
[tex] \frac{vf - vi}{t} [/tex]
Solution:
[tex] \frac{40 - 0}{15} [/tex]
[tex] \frac{40}{4} [/tex]
Answer:
[tex] = 10[/tex]
4.)
)Given:
Vf - 90km/s
Vi - 60km/s
t - 10s
Unknown:
Acceleration (a)
Formula:
[tex] \frac{vf - vi}{t} [/tex]
Solution:
[tex] \frac{90 - 60}{10} [/tex]
[tex] \frac{30}{10} [/tex]
Answer:
[tex] = 3[/tex]
5.)
Given:
Vf - 30km/s
Vi - 20km/s
t - 2s
Unknown:
Acceleration (a)
Formula:
[tex] \frac{vf - vi}{t} [/tex]
Solution:
[tex] \frac{30 - 20}{2} [/tex]
[tex] \frac{10}{2} [/tex]
Answer:
[tex] = 5[/tex]