You are driving on a public road and need to turn your vehicle around. You can use a three-
point turn
A: Only where U-turns are permitted, and only if the road is too narrow for your vehicle to make a
U-turn and you cannot go around the block.
B: In place of a U-turn, if there is a sign prohibiting a U-turn.
C: On straight roads, including on hills, but not on curves.

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.