Question on: JAMB Physics - 2009

A car accelerate uniformly from rest at 4 ms-2. How far will it travel in the fifth complete second?

A
100 m
B
50m
C
32 m
D
18 m
Ask EduPadi AI for a detailed answer
Correct Option: D

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

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