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Blackboard Academic Suite

Blackboard Academic Suite - FSICA I_GPO...

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FÍSICA I_GPO. 100 (CCM.F1002.0813.100) > CUESTIONARIOS DEL YOUNG > REVIEW ASSESSMENT: Y3 CINEMÁTICA 2D Y 3D Review Assessment: Y3 Cinemática 2D y 3D User Jorge Antonio Rodríguez Vargas Submitted 10/2/08 4:26 PM Name Y3 Cinemática 2D y 3D Status Completed Score 100 out of 100 points Instructions Question 1 10 out of 10 points Situation 3.1 A hiker throws a stone from the upper edge of a vertical cliff. The stone’s initial velocity is 25.0 m/s directed at 40.0° with the face of the cliff, as shown in Fig. 3.1. The stone hits the ground 3.75 s after being thrown and feels no appreciable air resistance as it falls. Figure 3.1 In Situation 3.1, the height of the cliff is closest to: Selected Answer: 141 m Question 2 10 out of 10 points A golf ball is hit so that it leaves the ground at 60° above the horizontal and feels no air resistance as it travels. Which of the following statements about the subsequent motion of this ball while it is in the air are true? (There may be more than one correct choice.) Selected Answer: Its acceleration is always 9.8 m/s 2 downward.
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