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25.05.2021 •
Physics
Need help with physics question (picture included)
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Ответ:
0.89 N
Explanation:
Centripetal force is mass time centripetal acceleration.
F = ma
F = m v² / r
Given m = 0.18 kg, v = 15 km/h = 4.17 m/s, and r = 3.5 m:
F = (0.18 kg) (4.17 m/s)² / (3.5 m)
F = 0.89 N