Question

A train moving with a uniform speed covers a distance of 120 m in 2 s. Calculate

(i) The speed of the train

(ii) The time it will taketo cover 240 m.​

Answer 1

(I)

`{ \bf{s = ut + (1)/(2)a {t}^(2) }} \\ 120 = (u * 2) + (1)/(2) * 0 * {2}^(2) \\ 120 = 2u \\ { \tt{speed = 60 \: {ms}^( - 1) }}`

(ii)

`{ \bf{s = ut + (1)/(2)a {t}^(2) }} \\ 240 = (60t) \\ { \tt{time = 4 \: seconds}}`