The drill bit of the variable-speed electric drill of


The drill bit of the variable-speed electric drill of radius 0.03 m has constant angular acceleration 2.5 rad/s^2. The initial angular speed of the bit is 4 rad/s. What is the angular speed after 4 seconds and angle has the bit turned through that time? What is the linear speed of the bit at that moment ?

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Physics: The drill bit of the variable-speed electric drill of
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