Question

A car is moving with uniform acceleration it covers 200m in 2sec and 220 m in 4 sec. The velocity of car at the end of 7th second from start is
1) 1ms-1
2) 0.1ms-1
3) 10 ms-1
4) 20 ms-1
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Answer 1

10m / s

Explanation: v = v2-v1 / t2-t1 v = 220-200 = 20 t = 4-2 = 2 v = 20/2 = 10