A person who had to catch a train having 16 coaches each 16 m long, when ran into the platform found that the train has already started moving. He could not board the train but saw the front of 1 0 th

Question

A person who had to catch a train having 16 coaches each 16 m long, when ran into the platform found that the train has already started moving. He could not board the train but saw the front of $1 0^{th}$ coach, from the engine, pass by the position where front of $1^{st}$ coach was positioned. It takes 8 s for the rest of the train to pass. The uniform acceleration of the train is $(\frac{α}{4}) m / s^{2}$ then the value of $α$ is :

Answer:

2.00

Solution:

Let acceleration of train be 'a'.

$∴ 9 \times 16 = \frac{1}{2} at^{2}$

Also, $16 \times 16 = \frac{1}{2} a (t + 8)^{2}$

solving for $a, a = \frac{1}{2} m / s^{2}$

TestHub · Accepted Answer

Let acceleration of train be 'a'. ∴ 9 × 16 = 2 1 ​ at 2 Also, 16 × 16 = 2 1 ​ a ( t + 8 ) 2 solving for a , a = 2 1 ​ m / s 2

Physics - Kinematics Question with Solution | TestHub

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