Exam 3 Preap Physics Numbers 11-15 2016

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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2. 12. If a nonzero net force is acting on an object, then the object is definitely

A. at rest.

B. being accelerated.

C. moving with a constant velocity.

D. losing mass.

3. 11. When the net force acting on an object is 0 N,

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.

4. 13. Which statement about the acceleration of an object is correct? (Hint: Use the equation.)

5. 14. A truck and a car uniformly accelerate from rest to a velocity of 3.0 m/s in equal time intervals. The truck is ten times as massive as the car. Which of the following statements is correct?

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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Mar 19, 2022

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Sep 13, 2015

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