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Subject :NSO    Class : Class 9

star_opt.jpeg Read the passage carefully and answer Q.

A train starts from rest and accelerates uniformly at 100 min_2 for 10 min. It then maintains a constant velocity for 20 minutes. The brakes are then applied and the train is uniformly retarded. It comes to rest in 5 minutes.

The total distance travelled is

(A) 27500 m

(B) 37500 m

(C) 4200 m

(D) 5000 m.

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