PHYS 50 sample EXAM - PHYSICSDEPARTMENT PHYS5006 SampleMIDTERM1 CLOSEDBOOK 1. byx=85t 4t2 t3, Determine a =1

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SAN JOSE STATE UNIVERSITY PHYSICS DEPARTMENT PHYS 50-06    CLOSED BOOK Sample MIDTERM 1    SHOW ALL WORK IN SPACE PROVIDED Spring 2010 1.  The Position of an object moving in a straight line is given by x = 8 - 5t + 4t 2  + t 3 , where x is in meters and t is in seconds.  Determine: a) The average velocity between t= 1s and t= 3s. b) The instantaneous velocity at t= 1s and t= 3s. c) The instantaneous acceleration at t= 1s and t= 3s. d) The average acceleration between t = 1s and t= 3s.  (20 pts) 2.  Given the two vectors  a  = 8.0 I    - 4.0 j  + 4.0 k  and      b  = 2.0 I   + 6.0 j  + 3.0 k .  Determine:     a) The scalar product  a b     b) The angle between  a and  b (10 pts) 3. A placekicker kicks a football from a point 30.0 m from the goal and the  ball must clear the crossbar that is 3.00 m high. The ball leaves the 
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This note was uploaded on 09/08/2010 for the course PHYS 50 at San Jose State University .

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