A wheel rotating with 16 rev/s is uniformly accelerated at 0.4 rad/s2 for 10 seconds. It then rotates with a uniform speed  for next 9 s. Then it is made to stop in next 15 s. Determine (i)maximum angular velocity; (ii) total angular displacement The velocity of the wheel at 10 seconds in rad/s is ? The angular displacement for the first case in rad is? The angular displacement for the second case in rad is? The maximum velocty in rad/s  is? The angular displacement for the last case in rad is? The total angular displacement in rad is?

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.