brittinyvenegas
14.10.2020 •
Physics
Equation of Motion Problems
Displacement. Distance. Speed and Velocity
1. Donovan Bailey ran the 100 m dash at the Atlanta Olympics in 9.84 s. Michael Johnson ran the 200 m in 19.32
s and the 400 m in 43.49 s. Find their average speed in each case.
Wom
kilometrom
Solved
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Ответ:
Below in bold.
Explanation:
1. Speed = distance / time
= 100 / 9.84
= 10.16 m/s.
Speed = 200/19.32 = 10.35 m/s.
Speed = 400/43.49 = 9.20 m/s.
Ответ:
2x+18+5x-9
2x+5x18-9
7x+9
7. 7
x= 1.4
hope it helps