4. A body with the mass m is thrown vertically up, from the ground, with the initial velocity Vọ. The air opposes a resistance force F = -av, constant a. Find: a) The velocity law until the maximum height; b) The motion law until the maximum height; c) The "terminal velocity"; d) The descent time. vo=20 m/s, m=0,2 kg, a=0.05kg/s, g=9,8 m/s² .
4. A body with the mass m is thrown vertically up, from the ground, with the initial velocity Vọ. The air opposes a resistance force F = -av, constant a. Find: a) The velocity law until the maximum height; b) The motion law until the maximum height; c) The "terminal velocity"; d) The descent time. vo=20 m/s, m=0,2 kg, a=0.05kg/s, g=9,8 m/s² .
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Transcribed Image Text:4. A body with the mass m is thrown vertically up, from the ground, with the initial velocity vo. The air
opposes a resistance force F = -oav , constant a. Find:
a) The velocity law until the maximum height; b) The motion law until the maximum height; c) The
"terminal velocity"; d) The descent time.
vo=20 m/s, m=0,2 kg, a=0.05kg/s, g=9,8 m/s² .
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