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Physics, 21.02.2020 20:49 cfnewton09
A rock with mass m = 4.00 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 16.3 N (a combination of gravity and the buoyant force exerted by the medium) and by a fluid resistance force f = kv, where v is the speed in m/s and k = 2.55 N×s/m .
1. Find the initial acceleration: a₀ = .
2. Find the acceleration when v = 2.10 m/s.
3. Find the speed when the acceleration equals 0.1*a₀.
4. Find the terminal speed .
5. Find the coordinate 2.00 s after the start of the motion.
6. Find the speed 2.00 s after the start of the motion.
7. Find the acceleration 2.00 s after the start of the motion.
8. Find the time required to reach a speed 0.9.
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A rock with mass m = 4.00 kg falls from rest in a viscous medium. The rock is acted on by a net cons...
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