A body starts from rest with a uniform acceleration of 1m/s^2.The average velocity in the time interval of t=3s and t=5s is:(a)4m/s (b)1m/s (c)0.4m/s (d)4m/s.
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Explanation:
u = 0m/s
a = 1m/s^2
t = 3s
v= v-u=at
=>v=at+u
=>v=3
Similarly 5s = 5m/s^2
3+5 / 2 = 4
so average velocity in the interval = 4m/s
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Explanation:
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