Question : A body starts from rest, with uniform acceleration. If its velocity after n seconds is v, then its displacement in last two seconds is
(a) \dfrac{2v\left( n+1\right) }{n}
(b) \dfrac{v\left( n+1\right) }{n}
(c) \dfrac{v\left( n-1\right) }{n}
(d) \dfrac{2v\left( n-1\right) }{n}
Answer : The right option is (d)
Solution :
