Answer Happy

Posted: **Tue Jul 12, 2022 12:45 pm**

: Question 10 15 Marks A Particle Moves In A Straight Line With Position S R Given By S T 1 4 7 Metres 120 Seconds 1 (25.35 KiB) Viewed 27 times

: Question 10 15 Marks A Particle Moves In A Straight Line With Position S R Given By S T 1 4 7 Metres 120 Seconds 2 (15.98 KiB) Viewed 27 times

Question 10 (15 marks) A particle moves in a straight line with position, s(r). given by s(t)=1-4√7 metres, 120 seconds. (a) Find the velocity and acceleration functions for the particle, and draw their sign diagrams. [5 marks] (b) Find the position, velocity, and acceleration of the particle at =4 seconds. Hence describe the motion of the particle at this time. (c) Find the times and positions when the particle reverses direction. [3 marks] [2 marks]

(d) Draw a motion diagram for the particle. (e) Determine the total distance travelled by the particle in the first 16 seconds. [2 marks] [3 marks]