Scantron answer page will NOT be counted 9. Object A and object B are identical

Question

Scantron answer page will NOT be counted 9. Object A and object B are identical and both start out at the same position but travel ending up at the same place sometime later. During their travels, both objects are sub At the end-point different amounts of force? work have been done on objects A and B. Wha A) It might be conservative. B) It is non-conservative. 10. A small child is standing on a frictionless, horizontal sheet of ice. The child throws a child. What is true about the child that throws the snowball? A) The child does not move. B) The child moves in the same direction as the snowball. C) The child moves in the direction opposite to that of the snowball. D) None of the other answers. is the time rate of doing work A) energy B) impulse C) moment of inertia D)P.E. ) power 12. An object is turning clockwise relative to the page. What is the direction of it angular ve A) clockwise B) counterclockwise C) into the page D) out of the pay 13. In a collision, two objects collide and then separate-going off in different directions. If of the two-particle system and the total kinetic energy are conserved, what type of collisi A) elastic B) inelastic C) completely inelastic D None of the other an nt ie 14. Reversibility of the work done by a force is a property of a force? A) conservative B) non-conservative 15. An object in freefall reaches terminal velocity when the downward pull of gravity on it is e upward force on it caused by air drag! The force due to air drag is B) non-conservative 16. The change in momentum of a particle during a time interval equals the ? A) conservative of the acts on the particle during that interval. A) energy B) impulse C) moment of inertia D) momentum E) powe

Explanation / Answer

9) B) it is non-conservative

since work on objects A and B are different

10) C) the child moves in the opposite direction of snowball

11) E) Power is the rate of change of doing work

12) according to right hand rule if the object is moving in clockwise direction on the page then the angular velocity is C) into the page

13) kinetic energy is conserved. Hence collision is A) elastic

14) revesibility is a property of A) conservative force

15) drag force is B) non conservative

16) change of momentum during a time interval is B) impulse

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