SAMPLE EXAM 2 ANSWERS

1.    Work(net)=604J
2.     d
3.    c
4.    Angular Speed=1.25Rad/s
5.    2.04  (times the acceleration due to gravity)
6.a)    W(Earth)=134.1J
b)        KE(initial)=0.00J
c)    KE(bottom)=134.1J
p(bottom)=51.8kg m/s
d)    v(halfway)=3.66m/s

7.a)    v(bottom)=7.67m/s
b)    v(top)=6.26m/s
c)    F(loop..top) =137.2N   (pointing down)

8.   SEE HW SOLUTIONS FOR CH. 6 OF SERWAY FAUGN SOLUTIONS ADDITIONAL PROBLEM ...LOOK UNDER MOMENTUM/COLLISIONS

9.a)    F(probe)=544N
b)    v(orbit)=3.23E3m/s
c)    p(probe)=3.23E6kg m/s
d)    g(planet surface)=19.6m/s^2