hervinlouis014
15.01.2020 •
Physics
How fast would 0.145 kg baseball have to go to have a kinetic energy of 88.7 j?
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Ответ:
Correct v = 34.98 m/s
Explanation:
The kinetic energy formula is Ek = m v²/2 => v = √2Ek/m
v = √2 · 88.7 / 0.145 = 34.98 m/s
God is with you!!!
Ответ:
F = m. a
F = 15 x 2.8 = 42 N