A turntable is off and is not spinning. A 0.8 g ant is on the disc and is 9 cm away from the center. The turntable is turned on and 0.8 s later it has an angular speed of 45 rpm. Assume the angular acceleration is constant and determine the following quantities for the ant 0.4 s after the turntable has been turned on. Express all quantities using appropriate mks units.

Complete Question

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Explanation:

From the question we are told that

       mass of the ant is

         The distance from the center is

         The angular speed is

          The time taken to attain  angular acceleration of 45rpm

           The time taken is

The  angular acceleration is mathematically represented as

   The angular velocity at time t= 0.4s is mathematically represented as

                                   Recall angular acceleration is constant

The linear velocity is mathematically represented as

The tangential acceleration is mathematically represented as

The radial acceleration is mathematically represented as

The resultant velocity is mathematically represented as

The net force is mathematically represented as

the answer would be 32*f

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