Question

Please answer

It's urgent!!!

Plizzzzzz!!! ​

Answer 1

Answer:

$\: answer \: - > \: \: 240 \: km \: hr^{ - 2}$

Explanation:

Acceleration = change in speed/time = (v-u)/t

Train was at rest.

Hence ,u=0 km/hr,

It attained a speed of 40km/hr,

Thus, v=40 km/hr,

Time is given as 10min = 10/60 hr = 1/6hr .

Substituting the values,

a = (v-u)/t =

$\frac{40 - 0}{ \frac{1}{6} } = 40 \times 6 = 240 \: km \: hr^{ - 2}$