Question 9 of 32
1 Point
A moving sidewalk has a velocity of 1.3 m/s north. If a man walks south on
the sidewalk at a speed of 0.9 m/s, how long does it take him to travel 20 m
relative to a stationary observer?
A. 21.9 s
B. 15.45
C. 50.0 s
D. 33.3 s

Date chapter motion and speed review part a. vocabulary review directions: write the terms that match each description below in thes complete the sentence in number 13. ich each description below in the spaces provided. the boxed letters will 1. equal forces acting in opposite directions (2 words) 2. occurs when an object's velocity decreases (2 words) 3. sum of all forces acting on an object (2 words) 4. total distance divided by total time (2 words) 5. name for the slant of a line on a graph 6. distance divided by time 7. a push or a pull exerted on a body or object 8. distance and direction of an object from its starting point 9. tendency to resist change in motion 10. measure of how far an object has moved 11. speed and direction of motion 12. rate of change of position at a specific point in time (2 words) 13. the rate of change in velocity is called motion and spe

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?