Question
The graph below plots the position versus time for an object moving in one dimension along the x direction.What is the speed (magnitude of velocity)
The graph below plots the position versus time for an object moving in one dimension along the x direction.What is the speed (magnitude of velocity) of the object at t = 2.5 s? ____ m/sWhat direction is the object moving along that time?+x?x The object is not moving.What is the acceleration of the object at t = 2.5 s? (Indicate the direction with the sign of your answer.)_____ m/s2Is the speed increasing, decreasing or constant at that time?Increasingdecreasing Constant 1.b) The graph below plots the velocity versus time for an object, different from the one in part (a), moving in one dimension along the x direction. What is the speed (magnitude of velocity) of the object at t = 2.5 s? ______ m/s What direction is the object moving along that time interval?+x?x The object is not moving. What is the acceleration of the object at t = 2.5 s? (Indicate the direction with the sign of your answer.)_____ m/s2 Is the speed increasing, decreasing or constant at that time?Increasingdecreasing constant QUESTION 2) A car moves in a straight line at 24.0 m/s for 12.0 miles, then at 30.0 m/s for another 12.0 miles.(a) Is the car's average speed less than, greater than, or equal to 27.0 m/s?less than 27.0 m/sequal to 27.0 m/s greater than 27.0 m/s (b) Calculate the car's average speed. (Enter your answer to three significant figures.) Graphs for question 1 and 1b
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