A body starting from rest travels in a straight line, first with uniform acceleration a and then with uniform deceleration b.
It comes to rest when it has covered a total distance d.
If the overall time for the journey is T, show that t^2 =2d (1/a +1/b)
i have the solution to the question but cant understand it as the person who did them doesnt have clear writing and also didnt explain everything he did here is the link.
http://thephysicsteacher.ie/Exam%20M...ation/1979.pdf its the second question on the link can somebody explain how he writes distance under the curve=2d . it says the total distance travelled was d so why did he say 2d. also how did he come up with t1=(b/b+a)T