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27-09-2021
Physics

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A plane starting at rest at one end of a runway undergoes a uniform acceleration of 4.8 m/s
2
for 15 s before take-off. What is its speed of takeoff?

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Аноним Аноним

27-09-2021

initial velocity=0m/s=u
Acceleration=a=4.8m/s^2
Time=t=15s

Final velocity be v

[tex]\\ \sf\longmapsto v=u+at[/tex]

[tex]\\ \sf\longmapsto v=0+4.8(15)[/tex]

[tex]\\ \sf\longmapsto v=72m/s[/tex]

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