Thanks for the previous answers. Now, I got stuck with 3 different questions while I was doing my homework.
1/. A car is moving along a straight road with uniform acceleration. The car passes a check-point A with a speed of 12 m/s and another check-point C with a speed of 32 m/s. The distance between A and C is 1100m.
(i) Find the time, in s, taken by the car to move from A to C.
(ii) Given that B is the mid-point of AC, find in m/s to 1 decimal place, the speed with which the car passes B.
2. A, B and C are 3 points on a straight line, in that order, and the distance AB and AC are 45m and 77m respectively. A particle moves along the straight line with constant acceleration 2 m/s². Given that it taked 5 seconds to travel from A to B, find the time taken to travel from A to C.
3. An aircraft accelerates along the runway with constant acceleration a m/s². 3 points on the runway are A, B, C, where the distances AB and AC are each 120m. The speed of the aircraft as it passes A is u m/s. The aircraft takes 6s to cover the distance AB and 4s to cover the distance BC. Find the values of a and u.
It would be awesome if anyone could help. Cheers.
