Answers to practice exam-I (PHYS-201, Spring '05, v2)

 1.) TFFFFT
 2.)  (a) 63.4deg  (b) 1.28s  (c) 8m 
 3.) (a) 1.2m/s^2  (b) T up, mg down  (c) 8800N
 4.) (a) 240m/s, 15.7deg  (b) 73.1mi
 5.) (a) 2.03*10^7m  (b) 4.43*10^3m/s, 0.97m/s^2  
 6.) (a) F_N, f_k, mg  (b) F_N=15N, f_k=3.75N  (c) a_x=4.42m/s^2  (d) 1.85m/s