Question

i need help

Answer 1

with?

Answer 2

physics

Answer 3

go ahead and ask your question

Answer 4

question is a train start from a station and moves with a constant acceleration for 2 min . if it covers adistance of 400 m in this period , find the acceleration

Answer 5

3.334 m/s?

Answer 6

wrong

Answer 7

acceleration is v-v/t so you can solve for velocity which is distance over time

Answer 8

yes. acceleration is change in velocity divided by time

Answer 9

but ans is 1/18 m/s^2

Answer 10

any body say something

Answer 11

I got 1/36 but if you need something else you can post this question on the physics part of openstudy and most likely those guys could help you better

Answer 12

ok

Answer 13

\(\large v = at\)

integrate both sides

\(\large \int v~dt = \int at~dt\)


\(\large s = a\frac{t^2}{2}\)

Answer 14

plugin \(s = 400\),
\(t = 2\times 60 \)

and solve \(a\)

Answer 15

\(\large 400 = a\frac{(2\times 60)^2}{2}\)