Question

Review For Finale

1. An apple is thrown down from atop the Statue of Liberty. Its position in meters is given according to the function -4.9t²-6.0t +46. Determine the velocity of the apple after 3.1 seconds.

2. An airplane travelling at 506 km/h horizontally drops a care package from a height of 880 m above the ground. How far in front of the release point will the care package hit the ground?

4. Carry out the following arithmetic, assuming all numbers are measurements expressed with significant figures:  

(6.5 + 3.5²)/(8.9-4.2)³

5. A yo-yo travels in a circular path of radius 2.3 m at a constant speed of 27 m/s. What is the magnitude of its acceleration?

7. A barge is pulled by two tugboats. The first barge pulls the tugboat in a direction 15 degrees East of North with a force of 4,372 N.  The second barge pulls the tugboat in a direction 10 degrees West of North with a force of 4,714 N. What is the magnitude of the resultant pull?

8. A nurse measures a person's blood pressure as being 83 beats per minute, +/- 2.  What is the percent uncertainty in the measurement?

9. A dog trots through a park with an initial velocity of 4.3 m/s and constant linear acceleration of 5.2 m/s².  What is the dog's displacement after 3 seconds if she runs in a straight line?

10. A dog trots through a park with an initial velocity of 2 m/s and constant linear acceleration of 4.6 m/s². What is the dog's velocity after 3 seconds have elapsed?

Answer 1

--4.9t- 6-0t +46 at 9-0t-C.0) t: 3.1 Sec - 36 38 MIS 24-88S う -9.8×3.1 -Co mls -30.38 24-38 MtS AY