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Questions and answers by
Godwin I. M.
Answers (1)
Initial velocity U=10m/s Final velocity V=25m/s Velocity V= 25m/s-10m/s=15m/s Time t=5s (a) In 5s, the velocity v= 15m/s. In 10s, the velocity v= 15m/s×2=30m/s. (b) V=50m/s a=dv/t=15m/s÷5s=3m/s^2 V=u+at 50m/s=10m/s+(3m/s^2×t) 50m/s=10+3t 50-10=3t 40=3t
