Question

A $8000$kg engine pulls a train of $5$ wagons, each of $2000$kg, along a horizontal track. If the engine exerts a force of $40000$N and the track offers a friction force of $5000$N, Then calculate:
$\left(a\right)$The net accelerating force
$\left(b\right)$The accelerating of the train

Answer 1

$a)$\ Net accelerating force is =$40000-5000N$

$F_{net}=35000N$

$b)$\ acceleration of train=$\frac{F_{net}}{totalmass}$

$a=\frac{35000}{18000}$

$a=1.944m/s^2$