A body starts moving with an initial velocity of u m s–1 and an acceleration of 4 m s–2. If the distance travelled by it is 20 m in the 2 second, then the value of u is ________
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Answer:
6m/s
Explanation:
S=ut+1/2at²
20=2u + 1/2(4)(2)²
20= 2u + 8
12= 2u
u= 6m/s
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