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General Physics - Questions with Answer Key | PHYS 111, Exams of Physics

Colorado Mesa University (CMU)Physics
Prof. David Collins

Material Type: Exam; Professor: Collins; Class: General Physics-GTSC1; Subject: Physics; University: Mesa State College; Term: Fall 2007;

Typology: Exams

Pre 2010

Uploaded on 08/19/2009

koofers-user-08m
koofers-user-08m 🇺🇸

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Question 1 Three balls of varying masses are releases from rest at Y AQ kg) B (4kg) varying heights above the ground as illustrated. Let ta be the time taken for A to reach the ground, tg be the time taken for B to reach the ground, etc..... Ignoring air resistance, which of the following best describes the relationship between these times? a) ta=tg=to Accalerch yu ‘S b))ta = tp >to sone for all c) ta > tp to Aye z a(t) d) ty > tp > te ges hy > loger At Some dg D sume At /4 Question 2 A baseball of mass 0.145 kg is struck with speed 30m/s at an angle of 70° from the horizontal. Ignoring air resistance, determine the maximum height that the baseball reaches. _- + Fadl iO ve Vie Vivin 30° = 306i 70° = 2514S ‘ J iahal Viy= vitos3o° <. j ? z 4 | tiso + Vi, = Vy + 2a,Ay 420 yte? O= (28.14) "4 2(-480) Ay lee 2) ve VAY =D dy = 40,50 iy Viye0 Ax70 /8