Two trains, which are moving along different tracks in opposite directions towards each other, are put on the same track due to a mistake. Their drivers, on noticing the mistake, start slowing down the trains when the

Question

Quantrex Academy · Accepted Answer

Correct answer: B. 20

Using the concept that the area under the v-t graph gives the change in displacement.

{s}_{1} = \dfrac{1}{2} \times 10 \times 40 = 200m

{s}_{2} = \dfrac{- 1}{2} \times 8 \times 20 = - 80m

Relative displacement

{\text{s}}_{\text{relative}} = {s}_{1} - {s}_{2} = \left(200\right) - \left(- 80\right) = 280

Finalseparation = 300 - 280 = 20m

Two trains, which are moving along different tracks in opposite...

Options

Correct answer

Step-by-step solution

More from Motion in Two Dimensions