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Science & Mathematics by Anonymous 2018-06-04 04:34:24
Social Science
A train is moving with a velocity of 10 m/s. It then accelerates at a uniform rate of 2.5 m/s2 for 8s. What is the velocity after 8s?
4 answers
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Anonymous
V = Vo+a*t = 10+2.5*8 = 30 m/sec (quite impossible for a train ^_- )
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Anonymous
Change in speed = acceleration * time Add the change in speed to the initial speed.
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Anonymous
v = u + at v = 10 + 2.5 x 8 v = 10 + 20 v = 30 m/s
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Anonymous
v=u+at v=10+(2.5*8) v=30 m/s