# psphystestau02 - The University of the State of New York...

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1A net force of 25 newtons is applied horizontally to a 10.-kilogram block resting on a table. What is the magnitude of the acceleration of the block? (1) 0.0 m/s 2 (3) 0.40 m/s 2 (2) 0.26 m/s 2 (4) 2.5 m/s 2 2 The speed of a car is increased uniformly from 20. meters per second to 30. meters per second in 4.0 seconds. The magnitude of the car’s aver- age acceleration in this 4.0-second interval is (1) 0.40 m/s 2 (3) 10 m/s 2 (2) 2.5 m/s 2 (4) 13 m/s 2 3A roller coaster, traveling with an initial speed of 15 meters per second, decelerates uniformly at –7.0 meters per second 2 to a full stop. Approximately how far does the roller coaster travel during its deceleration? (1) 1.0 m (3) 16 m (2) 2.0 m (4) 32 m 4 The diagram below represents a 0.40-kilogram stone attached to a string. The stone is moving at a constant speed of 4.0 meters per second in a horizontal circle having a radius of 0.80 meter.
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psphystestau02 - The University of the State of New York...

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