A car accelerate uniformly from rest at 4 ms-2. How far will it travel in the fifth complete second?
Answer Details
From S = ut + 1/2 at2 S = 1/2 ut2, since U = 0 Let S5 = distance in 5 seconds = 1/2 x 4 x 52 = 2 x 25 = 50m S4 = distance covered in 4 seconds = 1/2 x 4 x 42 = 2 x 16 = 32m Distance covered in the fifth second S5 - S4 = 50m - 32m = 18m