Problem Pack 2 - A m4 on 0 rel/«en mwfier rel/s am"...

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Suppose we repeat the experiment but, instead of #14». a}? = 9 - starting from rest, the cart is already moving with constant speed V in the direction of the force at the Q 77,; moment we begin to apply the force. After _we exert the same constant force for the same short time ® Fa. /§-e_ interval, the increase in the cart‘s speed $16 7%; pd...» ht}; Ugo!” a: I ['5 Used (a; I F m Caesar-1,9424“ an; 6‘. ”corny Fwfifé 0.1.3 - “fiat d‘fi‘ ' ® 27;“; ' A. is equal to the square root of 2 times its initial speed. B. is equal to its initial speed. C. is equal to twice its initial speed. D. is equal to the square of its initial speed. E. cannot be determinedfrom the information provided. ' e You are a passenger in a car and not wearing your seat belt. Without increasing or decreasing its speed, the car makes a sharp left turn, and you find yourself colliding with the right-hand door. Which is the correct analysis of the situation? A. Before and after the collision, there is a rightward force pushing you into the door. B. Starting at the time of collision, the door exerts a . leftward force on you. - - C. Both of-the above. , D. Neither of the above. Consider yourself. sitting in Physics 116 class. Is the _ following statement true? ‘ The gravitational force pulling you. down and the normal force exerted by your chair on you constitute ' an interaction pair that are always equal and opposite according to .Newton‘s-tlurd law. .A. Yes . - B. No A locomotive pulls a series of wagons. Which is the correct analysis of the situation? A. The train moves forward because the locomotive pulls forward slightly harder on the wagons than the wagons pull backward on the locomotive. B. Because action alWays equals reaction, the locomotive cannot pull the wagons -- the wagons pull backward just as hard as the locomotive pulls . forward, so there is no motion. C. The locomotive gets the wagons to move by giving them a tug during which the force on the wagons is momentarily greater than the force exerted by the wagons on the locomotive. D. The locomotive's force on the wagons is as strong as the force of the wagons on the locomotive, but the frictional force on the locomotive is forward and large, while the backward frictional force on the wagons must-be smaller. ' E. The locomotive can pull the wagons forward only if it weighs more than the wagons. 4“. #J- l7+k ceitflrfl W. yoq Gfl‘r¢;k£! Ct. ?A_y3«.($f' A P’Qw “at” Add; 4L ,44‘Lo o4 “A.” M u; .M zuafd¢Lu7 Gert-null? I fl‘H’c& fwc [Lo/{Mu jarouec. a. sfii’éury ”9141;“ 4(9an flu 7Vougd. ”5“!" flu, h¢.m-”/°.M‘_’ #7‘fiv W "W‘OW-J 14“ a“; 74"“ 7"!“ fr¢L+¢isuleea ?ul/¢y $y9+€m Jéowog. Ud‘fi jl-Ol-U “COCA 7 Pow/11137 974402191215 at fig”: *7?” etfé'f-Loryg km; 152,“; =0 914:. ”a“? m 7Q“ ”v,” Izu,g {hang 4‘4 Q55OMa. mgséar V's/42.. 0‘1“?th 3ng 7’11 ima‘g/éek; 4fl¢’7‘: €44. 74994 524:9! 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