Question

A train starts from rest with an acceleration of 2 meter per second squared. Find the time it takes to move through 100 m

Answer 1

Answer:

10 secs is the answer . I think

Answer 2

Given:-

→Initial velocity of the train = 0

(as it starts from rest)

→Acceleration of the train = 2m/s²

→Distance travelled = 100m

To find:-

→Time taken

Solution:-

By using the 2nd equation of motion, we get:-

=> s = ut+1/2at²

Where:-

•s is the distance travelled

•u is initial velocity of the body

•t is time taken

•a is acceleration of the body

=> 100 = 0(t) + 1/2×2×t²

=> 100 = t²

=> t = √100

=> t = 10s

Thus, the train takes 10 seconds to move through a distance of 100m.

Some Extra Information:-

The 3 equations of motion for a body moving with uniform acceleration are:-

• v = u+at

• s = ut+1/2at²

• v²-u² = 2as