Answer:
Explanation:
Due to change in the position of 3 kg mass , the moment of inertia of the system changes , due to which angular speed changes . We shall apply conservation of angular momentum , because no external torque is acting .
Initial moment of inertia I₁ = M R² = 3 x 1 ² = 3 kg m²
Final moment of inertia I₂ = M R² = 3 x .3 ² = 0.27 kg m²
Applying law of conservation of angular momentum
I₁ ω₁ = I₂ ω₂
Putting the values ,
3 x .75 = .27 x ω₂
ω₂ = 8.33 rad / s
New angular speed = 8.33 rad /s .
Density = mass / volume = 7/14 = 0.5!g/cm^3
Answer:
the direction of the velocity is downward and the acceleration decreases throughout the motion
Explanation:
since the gradient is negative it is decelerating
Answer:
I believe that the crab would have 14 arms if the octopus had 12 arms
Explanation:
