JAMB - Physics (2012 - No. 3)
Calculate the total distance covered by a train before coming to rest if its initial speed is 30ms-1 with a constant retardation of 0.1m-2
5500m
4500m
4200m
3000m
解释
S = \(\frac{V^2 - U^2}{20}\)
S = \(\frac{0^2 - 30^2}{2 \times 0.1}\)
S = \(\frac{0^2 - 30^2}{2 \times 0.1}\)