Answer Happy

Posted: **Mon May 09, 2022 5:59 pm**

: Question 1 9 Marks Two Cars Start From Rest At The Same Location And At The Same Instant And Race Along A Straight Tra 1 (39.83 KiB) Viewed 35 times

Question 1 [9 marks] Two cars start from rest at the same location and at the same instant and race along a straight track. Car A undergoes a constant acceleration of 2 ms-2 up to a speed of 40ms-1 and then runs at a constant speed. Car B undergoes a constant acceleration of 1.5 ms-2 up to a speed of 45 ms and then runs at a constant speed. Which car will win the 5 km race?
Using the results Vo + at 1 vot + S at? for constant acceleration, we can calculate the time it takes each driver to complete the 5000 m. Obviously, the one that takes the least time is the winner. IT IS VERY HELPFUL FIRST TO MAKE A DIAGRAM IN WHICH THE DYNAMICAL VARI- ABLES ARE SHOWN AT EACH OF THE IMPORTANT POINTS IN THE PATH OF EACH OF THE CARS