Sumali sa IDNStudy.com at tuklasin ang komunidad ng mga taong handang tumulong. Hanapin ang impormasyon na kailangan mo nang mabilis at madali sa pamamagitan ng aming komprehensibo at eksaktong platform ng tanong at sagot.
2. A train is passing through a station at constant speed, as shown in Figure below. The track is horizontal. Fig 2.1 The engine produces a forward thrust of 70 000 N. There is a 25 000 N force opposing the motion, due to friction in the wheels. (a) Mark these forces using an arrow labelled 70 000 N and an arrow labelled 25 000 N [1] (b) The train is travelling at constant speed, so there must be another horizontal force acting on it. (1) State the direction of this force. _ ([1] (1) Calculate the magnitude of this force. magnitude of force = (c) Once the train has passed the station, the driver increases the engine's forward thrust. All other forces stay the same. () What happens to the train? () Why does this happen N [1] [1] (1)
Sagot :
Pinahahalagahan namin ang bawat tanong at sagot na iyong ibinabahagi. Huwag kalimutang bumalik at magtanong ng mga bagong bagay. Ang iyong kaalaman ay mahalaga sa ating komunidad. Bawat tanong ay may sagot sa IDNStudy.com. Salamat at sa muling pagkikita para sa mas maraming solusyon.
