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Which of these are valid equations for rotation?

Which of these are valid equations for rotation?. θ = θ 0 + ω 0 Δ t + ½ α Δ t 2 K = I ω Σ L = 0 (if there are no external torques) ω = ω 0 + α Δ t I = amR 2 Σ τ = I α. Which of these are valid equations for rotation?. θ = θ 0 + ω 0 Δ t + ½ α Δ t 2 K = I ω

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Which of these are valid equations for rotation?

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  1. Which of these are valid equations for rotation? θ = θ0 + ω 0Δt + ½ αΔt2 K = I ω ΣL = 0 (if there are no external torques) ω= ω 0 +α Δt I = amR2 Στ = I α

  2. Which of these are valid equations for rotation? θ = θ0 + ω 0Δt + ½ αΔt2 K = I ω ΣL = 0 (if there are no external torques) ω= ω 0 +α Δt I = amR2 Στ = I α

  3. I have a string tied to a cylinder of mass 1 kg and radius 10 cm as shown below. If I pull the string with a force of 10 N, what is the change in angular velocity of the cylinder after 3 seconds? (Hint: use one or more of the equations below.)Give your answer in _____ rad/s k. ω= ω 0 +α Δt I = amR2(for a cylinder spinning around its central axis a=1/2.) Στ = I α Table 9.2

  4. I have a string tied to a cylinder of mass 1 kg and radius 10 cm as shown below. If I pull the string with a force of 10 N, what is the change in angular velocity of the cylinder after 3 seconds? (Hint: use one or more of the equations below.)Give your answer in _____ rad/s k. I = ½ mR2 = ½ (1 kg) (10 cm)2 (1 m / 100 cm) (1 m / 100 cm) = 0.005 kg m2 Table 9.2

  5. I have a string tied to a cylinder of mass 1 kg and radius 10 cm as shown below. If I pull the string with a force of 10 N, what is the change in angular velocity of the cylinder after 3 seconds? (Hint: use one or more of the equations below.)Give your answer in _____ rad/s k. τ = R X F τ = R F sin φ = (10 cm) (1 m / 100cm) (10 N) sin (90o) = 1 N m Table 9.2

  6. I have a string tied to a cylinder of mass 1 kg and radius 10 cm as shown below. If I pull the string with a force of 10 N, what is the change in angular velocity of the cylinder after 3 seconds? (Hint: use one or more of the equations below.)Give your answer in _____ rad/s k. τ = Iα α = τ / I = (1 N m) / (0.005 kg m2) = 200 rad / s2 Table 9.2

  7. I have a string tied to a cylinder of mass 1 kg and radius 10 cm as shown below. If I pull the string with a force of 10 N, what is the change in angular velocity of the cylinder after 3 seconds? (Hint: use one or more of the equations below.)Give your answer in _____ rad/s k. ω= ω 0 +α Δt Δ ω = α Δt = (200 rad / s2) (3 s) = 600 rad/s Table 9.2

  8. In the picture below the wheel is spinning counterclockwise as seen from the top. If the wheel is completely flipped, what direction will the man spin? (Assume that angular momentum for the system is conserved.) Clockwise Counterclockwise It depends on something not yet discussed.

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