Question

a train starting for from railway station contains a speed of 21 m/s in a minute. find the acceleration​

Answer 1

Answer:

0.35 m/s²

Explanation:

Initial velocity (u) = 0m/s

Final velocity (v) =21 m/s

Time taken = 1 min = 60 sec

Acceleration : a = v-u

$a = \frac{v - u}{t} \\ a = \frac{21 - 0}{60 } \\ a = \frac{21}{60} = \frac{7}{20} \\ a = 0.35 \: m \: per \: s$