Question

A train travelling at 18 m/s accelerates uniformly at 2 m/s² for 6 seconds. Calculate the final speed of the train.

Answer 1

Answer:

By the formula v=u+at

where v is the final speed or velocity

v=18+2*6

v=18+12

v=30

therefore final speed of train is 30m/s.

Answer 2

Answer:

v = 30 m/s

Explanation:

Initial velocity ( u ) = 18 m/s  .

Acceleration ( a ) = 2 m / s²

Time ( t ) = 6 sec.

Let final velocity = v

Now ,

v = u + at

v = 18 + 2 * 6

v = 18 + 12

v = 30 m/s