Question: 40. If an object's angular velocity is changing then Its linear acceleration is zero Its angular acceleration is zero Tangential acceleration is zero Neither a,

40. If an object's angular velocity is changing then

  1. Its linear acceleration is zero
  2. Its angular acceleration is zero
  3. Tangential acceleration is zero
  4. Neither a, b or c

41. All projectiles have the same free body diagram

  1. True
  2. false

42. Once a body is sliding, dynamic friction equals static friction

  1. True
  2. False

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