User Forum

Subject :NSO    Class : Class 9

Read the passage carefully and answer Q.

An 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 frictional force of 5000 N. The force of wagon 1 on wagon 2 is

(A) 28000 N

(B) 18000 N

(C) 10000 N

(D) 20000 N

Post Your Answer