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    				| 1. | 
                                    A train consisting of 30 wagons each of 15 tons and ispulled by an engine of power 90 KW. If the frictionalforce and air resistance force offered per ton of thetrain is 12 N then the maximum velocity with whichthe train can travel is | 
                            
| Answer» A train consisting of 30 wagons each of 15 tons and ispulled by an engine of power 90 KW. If the frictionalforce and air resistance force offered per ton of thetrain is 12 N then the maximum velocity with whichthe train can travel is | |