Exam 3 Preap Physics Numbers 11-15 2016

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1. 15. In which situation is the net force acting on a car zero?

A. The car increases speed and changes direction.

B. The car increases speed but does not change direction.

C. The car maintains its speed but changes direction.

D. The car maintains both its speed and direction.

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A. at rest.

B. being accelerated.

C. moving with a constant velocity.

D. losing mass.

A. the object’s motion changes.

B. there are no forces acting on the object.

C. the forces acting on the object are balanced.

D. the forces acting on the object are unbalanced.

A. The acceleration of the truck is 1/10 that of the car.

B. The truck travels 1/10 the distance of the car.

C. The force on the truck is 10 times the force on the car.

D. all of the above

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