I need help on questions 10,11, and 12. And for question 12 could you tell me which direction it is going as well? 10.The position of a 25 kg robot that is moving along a straight track in the x directionis given by the function r(t) = (0.002 m/s4)+4+(-0.08 m/s³)t³+ (0.8 m/s²)t² between the timest = 0 and t = 20 s. This function is shown in the graph below.anonient(a) Describe what is going on near t = 10 s.11.(b) What is the average speed of the robotduring the first 10 s?12.(c) What is the average speed of the robotover the entire 20 s?Tuoteror1 66What is the velocity of the ob-ject shown in the motion diagram to the rightposition (m)if the total time interval recorded was 4.0 s201and the vertical lines mark off 4.0 m intervals?20(The final position is where the large mark is.The small dot at the other end shows whereit started. The small dots show its prior posi-tions at half-second intervals.)15-10505time (s)(a) What is the average speed of the athlete over one full repetition of this exercise?levererto bu(b) What is the average velocity of the athlete over one full repetition of this exercise?|·|10nevis sus volemion)A practice exercise for athletes on a track team is to sprint 100 m along a straightsection of the track and then immediately turn around and jog back to their starting position.An athlete completes the sprint in 14s and then jogs back at an average speed of 2.9 m/s.1520

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10. The position of a 25 kg robot that is moving along a straight track in the x direction is given by the function r(t) = (0.002 m/s²)t² + (−0.08 m/s³)t³+(0.8 m/s²)t² between the times t = 0 and t = 20s. This function is shown in the graph below. 11. (a) Describe what is going on near t = 10 s. OD DAY TOCA (b) What is the average speed of the robot during the first 10 s? SOLD (c) What is the average speed of the robot over the entire 20 s? position (m) 20 15 -10 time (s) 10 15 20 A practice exercise for athletes on a track team is to sprint 100 m along a straight section of the track and then immediately turn around and jog back to their starting position. An athlete completes the sprint in 14s and then jogs back at an average speed of 2.9 m/s. (a) What is the average speed of the athlete over one full repetition of this exercise? to bu(b) What is the average velocity of the athlete over one full repetition of this exercise?

10. The position of a 25 kg robot that is moving along a straight track in the x direction is given by the function r(t) = (0.002 m/s²)t² + (−0.08 m/s³)t³+(0.8 m/s²)t² between the times t = 0 and t = 20s. This function is shown in the graph below. 11. (a) Describe what is going on near t = 10 s. OD DAY TOCA (b) What is the average speed of the robot during the first 10 s? SOLD (c) What is the average speed of the robot over the entire 20 s? position (m) 20 15 -10 time (s) 10 15 20 A practice exercise for athletes on a track team is to sprint 100 m along a straight section of the track and then immediately turn around and jog back to their starting position. An athlete completes the sprint in 14s and then jogs back at an average speed of 2.9 m/s. (a) What is the average speed of the athlete over one full repetition of this exercise? to bu(b) What is the average velocity of the athlete over one full repetition of this exercise?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 71AP: An ice sled powered by a rocket engine sum from rest on a large frozen lake and accelerates at + 40...

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