A train travelling at 20m/s (power negetive 1) accelarates at 0.5m/s (power negitive 2) for 30s.How far will it travel in this same time?
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s=ut+1/2×at^2
u=20,a=1/2,t=30
s=20×30+1/2×1/2×900
825m
u=20,a=1/2,t=30
s=20×30+1/2×1/2×900
825m
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