A new and powerful robotic aircraft is observed moving along a straight line parallel to the x axis. The scalar x component of the robot's velocity is given as a function of time by (541 - 9 t)-, where t is the number of seconds since observations began. Att = 0, the robot's x-position coordinate is equal to + 10 m. 8. At time t =1 second, the robot is located at x equals A. + 24 m. B. + 55 m. C. + 54 m. D. + 45 m. E. + 34 m. 9. At t = 1 second, the scalar x component of the robot's acceleration is equal to A. B. 54 m D. 10. At timet = 7 seconds, the robot is A. slowing down while moving in the positive x direction. B. slowing down while moving in the negative x direction. C. speeding up while moving in the positive x direction. D. speeding up while moving in the negative x direction. at rest. 11. The robot comes to rest A. only at t= 0. B. only at t = 3 s. C. att = 0 and at t = 6 s. D. only at t = 6 s. E. never. 12. For the time interval from t = 0 to t = 2 seconds, the robot's average acceleration has x component equal to A. C. /u L7 a 13. When, if ever is the robot moving in the positive x direction? B. 0SIS35, D. 0<1<3s. A. I26s. s9>1>0 3 14. When, if ever, is the robot speeding up while moving in the negative x direction? E. 0sIs3s. B. 0<1<3.s, 's9 >1>0 ) 9:11 AM
A new and powerful robotic aircraft is observed moving along a straight line parallel to the x axis. The scalar x component of the robot's velocity is given as a function of time by (541 - 9 t)-, where t is the number of seconds since observations began. Att = 0, the robot's x-position coordinate is equal to + 10 m. 8. At time t =1 second, the robot is located at x equals A. + 24 m. B. + 55 m. C. + 54 m. D. + 45 m. E. + 34 m. 9. At t = 1 second, the scalar x component of the robot's acceleration is equal to A. B. 54 m D. 10. At timet = 7 seconds, the robot is A. slowing down while moving in the positive x direction. B. slowing down while moving in the negative x direction. C. speeding up while moving in the positive x direction. D. speeding up while moving in the negative x direction. at rest. 11. The robot comes to rest A. only at t= 0. B. only at t = 3 s. C. att = 0 and at t = 6 s. D. only at t = 6 s. E. never. 12. For the time interval from t = 0 to t = 2 seconds, the robot's average acceleration has x component equal to A. C. /u L7 a 13. When, if ever is the robot moving in the positive x direction? B. 0SIS35, D. 0<1<3s. A. I26s. s9>1>0 3 14. When, if ever, is the robot speeding up while moving in the negative x direction? E. 0sIs3s. B. 0<1<3.s, 's9 >1>0 ) 9:11 AM
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:A new and powerful robotic aircraft is observed moving along a straight line parallel to the x axis.
The scalar x component
of the robot's velocity is given as a function of time by (54t – 9 t² )
where t is the number of seconds since
|
observations began. At t 0, the robot's x-position coordinate is equal to + 10 m.
8. At time t =1 second, the robot is located at x equals
A. +24 m.
B. + 55 m.
C. + 54 m.
D. + 45 m.
E. + 34 m.
9. Att = 1 second, the scalar x component of the robot's acceleration is equal to
A. 45 m/
C. 36
B. 54 m
D. 9.8 m
E. 24 m
10. At time t = 7 seconds, the robot is
A. slowing down while moving in the positive x direction.
B. slowing down while moving in the negative x direction.
C. speeding up while moving in the positive x direction.
D. speeding up while moving in the negative x direction.
E. at rest.
11. The robot comes to rest
A. only at t = 0.
B. only at t= 3 s.
C. at t 0 and at t = 6 s.
D. only at t = 6 s.
E. never.
12. For the time interval from t = 0 to t = 2 seconds, the robot's average acceleration has x component equal to
A. 72 m/ -
/
u 09 3
/u L7
hu 9
13. When, if ever is the robot moving in the positive x direction?
B. 0<1<3s.
C. 1> 6s.
D. 0<t <3s,
A. 126s.
14. When, if ever, is the robot speeding up while moving in the negative x direction?
D. 126s.
E. 0SI53S.
B. 0<1<3s.
C, 0<1<6s,
A. t> 6s.
9:11 AM
46°F Mostly sunny
10/19/202
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