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het can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Archip HAT LINGAM Coing to pr (c) Calculate the total length of cut completed by the CNC machine ACTIVITY 2 1 The diagram shows a racing car of mass 750 kg decelerating at a constant rate on a straight and level track 300 m V₁ 50 m/s m/s Diagram not to scale (a) Calculate the rate of deceleration of the racing car (b) Calculate the time taken for the car to decelerate to V₂ m/s The racing car then travels along another straight piece of track at a velocity of V: m/s.As it passes point A the engine stops and the car begins to freewheel up the incline of the track. Assume there is no friction or wind resistance. Page 5 of 10 BA British Applied College Umm Al Quwain bo Point at which the car comes to rest Diagram not to scale (c) Calculate the height (h) above the original track level where the car will come to rost. The engine is then restarted and the racing car travels on a curved length of trackthat has a radius of 12m at a constant tangential velocity of V: m/s. (4) Calculate the contripetal acceleration of the racing car on the curved lengthof track (e) Explain one way that friction would affect the racing car as it travels around the curved section of the track 2 The diagram shows a gradually tapering pipe. The pipo runs full with an unknown original track level want to do Pearson Enable Editing
you need to edit, it's safer to stay in Protected View. khá ha ha hang rest. ngon là thiết m W THE WAY The engine is then restarted and the racing car travels on a curved length of trackthat has a radius of 12m at a constant tangential velocity of V₂ m/s. (d) Calculate the centripetal acceleration of the racing car on the curved lengthof track. (e) Explain one way that friction would affect the racing car as it travels around the curved section of the track 2 The diagram shows a gradually tapering pipe. The pipe runs full with an unknown incompressible fluid. The inlet flow velocity of the fluid is V₁ m/s. end elevation end elevation (cross section) Outlet (cross section) Inlet Direction of flow Inlet area=0.4 m² side elevation Outlet area=0.6 m² Diagram not to scale (a) Calculate the volumetric flow rate of the unknown fluid at the inlet. (b) Calculate the outlet velocity of the unknown fluid. 2.5 m² of the fluid has a mass of 890kg. (c) Calculate the mass flow rate of the unknown fluid in the gradually tapering pipe. 3 The diagram shows a simply supported beam Assume the beam has no mass and is in static equilibrium. Page 6 of 10 Enable Editing
Help nternet can contain viruses. Unless you need to edit, it's safer to stay in Protected View, Tell me what you want to do Enable Editing BA British Applied College CU Umm Al Quwain Pearson Circular Pin Diagram not to scale The carriage has a mass of m kg including two passengers. (a) Calculate the load F in one of the the bars. Each tie bar has an original length of 370mm. When the load of carriage is applied, each tie bar extends by 3x10 mm. (b) Calculate the direct strain in one tie bar. State your answer to 3 significant figures (3 SF). The circular pin has a radius of 5x10¹³ m. (c) Calculate the shear stress in the circular pin (d) Explain how the modulus of rigidity (G) of the material used for the circular pinaffects its performance under loading.