A wire is connected to a 6 V battery. At 20o C , the current through a wire connected to the battery is 2.0 A but reduces to 1.7 A when the T of the wire is 100oC. What is the Temperature coefficient of resistivity of the wire

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.