lmolder1329
30.08.2021 •
Physics
Which of the following quantities are vectors?
Distance
Displacement
Velocity
Speed
Force
Fores
O
Height
Acceleration
Solved
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Ответ:
2.097×10^-5 N
Explanation:
Viscosity = mass/distance×time
time (t) = mass/viscosity×distance
Mass of steel part = 200 kg
Viscosity of oil = 0.065 N.s/m^2
Distance = 0.5 mm = 0.5/1000 = 5×10^-4 m
t = 200/0.065×5×10^-4 = 6.2×10^6 s
Force (F) = mass×velocity/time = 200×0.65/6.2×10^6 = 2.097×10^-5 N